Mechanics Forum

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B vacuum in tanks similiar torricellian vacuum
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2
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28
B Ball collision model - 2 balls in motion at varying angles and velocities
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10
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179
B Pressure of air inside a glass
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3
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67
B Acoustic levitation: high or low pressure?
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4
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150
B Newton's second law -- rockets
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6
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143
B Limb levers, leg squat
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4
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129
B Water swirl in the sink
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3
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139
B Rotation is absolute, linear motion is relative?
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3
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74
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922
B Is blood a rheopectic fluid?
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5
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147
B Hanging beads in vehicle turning on horizontal road (constant v and r)
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8
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417
B Hourglass on a balance scale
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6
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374
B Work to Lift an Object
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12
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363
B Hovering of a Kestrel bird
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14
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416
B Irreversibility of Aristotle's law
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15
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534
B Matter and Friction
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8
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468
B A request regarding Newton's beads/chain fountain phenomenon
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16
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948
B Wind turbine torque
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3
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382
B Proof of inverse square law for gravitation?
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18
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575
B Various Work and Energy laws
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2
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426
B What's so great about Noether's theorem?
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5
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341
B Normal Force Discrepancy for Wedge Vs. Ramp
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9
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441
B Rod resting against a smooth peg
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6
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370
B Why is static friction necessary for pure rolling?
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4
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386
B Rolling of non-deforming sphere on a non-deforming rough surface?
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4
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358
B Is simple harmonic motion also a pure translatory motion?
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21
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529
B Doubt regarding the terms used in the solution
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3
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318
B Unable to understand how these two forces are equal
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5
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394
B Trouble understanding what rolling friction is
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9
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430
B Friction on pure rolling non deforming sphere?
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3
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375
B Displacement of Hanging Mass - Simple Pulley System
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4
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350
B Applying the distance formula d= v*t + 1/2a*t^2
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5
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510
B Why is KE not conserved when momentum is?
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2
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53
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1K
B Questions about Feynman's contrasting Definitions and Laws in physics
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15
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645
B Does a body behave as a point mass even at rest?
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2
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38
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1K
B Rolling motion test
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2
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37
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874
B Wanting to do some impact force experiments
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15
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460
B Revisiting Average Velocity
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1
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382
B Conservation of Momentum for system of particles
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2
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52
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930
B Strapped to a quadcopter in zero gravity
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3
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325
B Difference Between Potential and Potential Energy
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2
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55
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1K
B Conservation of momentum and conservation of energy details
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30
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637
B K Energy and momentum
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12
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433
B Will a round-headed rod topple if it slides down a frictionless slope?
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4
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123
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2K
B How come friction can make a car turn?
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10
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595
B Centrifugal force spinning Basketball
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1
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362
B DC motor Power and torque
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7
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390
B Newton's second law about cars
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20
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646
B Upwards movement -- Lifting weights while standing on a scale
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17
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389
B Thoughts on dry friction
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11
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583
B Defining momentum
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29
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915
B Thoughts on friction
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2
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307
B Some thoughts on friction
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11
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393
B Analysis vs arithmetic approach to solving motion
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9
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503
B Rolling without slipping in non-sloping surface
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13
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444
B Does air resistance have a max value?
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3
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302
B Confusion with orientation of coordinate axis in inclined plane
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2
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40
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1K
B Conservation of Energy and Momentum in an Explosion
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4
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387
B Mass vs weight
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2
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46
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2K
B Does the Bernouli Effect Work On Cars?
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8
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550
B About actually touching something and sound made by collision
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10
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528
B Can I hold down more than my body weight on a 1 to 1 system?
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13
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414
B Does more energy mean more work?
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2
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395
B Gravitational acceleration in circular motion
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2
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400
B Question related to g
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9
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399
B To displace the Earth from its orbit
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20
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679
B Is the final velocity of a Tossed tomato the same as its initial velocity
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10
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431
B Work energy theorem by variable force
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23
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507
B Work done by a weightlifter
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24
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850
B Misleading Textbook Equation for vf^2=vi^2 + 2ad
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3
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365
B Why define and use Impulse?
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10
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554
B When the ball is thrown up
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13
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615
B Same case of Newton’s third law
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1
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350
B Work done in lifting and lowering an object
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34
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1K
B What is the need for the concepts of Work and Energy (KE)?
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8
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479
B About verification on Kinetic energy and work
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16
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536
B Defining Tension in rope
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2
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520
B Newton’s second law as one complete law
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27
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636
B Calculate needed dimensions of table - Center of mass, levers etc
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11
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410
B Reason behind friction
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19
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758
B Distance as an Integral
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13
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519
B Hydraulic lifting force
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4
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445
B Flywheel for generator drive
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9
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524
B Atwood machine -- Question about the pulley and weights
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12
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500
B Air Gun Sighted at a Falling Target Demonstration
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4
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413
B Maximum Force on transom of a boat under acceleration
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6
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474
B Question about a simple free body diagram
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3
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76
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2K
B Speed/velocity as a derivative
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6
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571
B About Second equation of motion
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5
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421
B Grain direction for maximum tear resistance for a wire bound book
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3
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287
B Inertial vs non inertial frames
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3
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502
B Confused about force body diagram for 2 body collision
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6
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436
B Question in the momemtum-impulse theorem derivation
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9
Views
522
B Alternative elastic collision formula / physical interpretation
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3
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328
B Locus if velocity component is zero
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6
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367
B According to Newton's 3rd Law....
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2
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58
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2K
B Conservation of momentum in a closed system
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3
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569
B Resultant force in vertical circular motion
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6
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610
B How do mechanical (weighing) scales work?
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9
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770
B A question from Resnik about g-force
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2
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39
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1K
B Colliding balls: Conservation of momentum and changes in kinetic energy?
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2
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358

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