Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
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In order to find the recoil velocity of a spring
- jgibbon2
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How Fast Was the Freight Car Moving Before Hitting the Springs?
- klmartin
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Distance traveled by a accelerating truck with steel load.
- blackkeys
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Coefficient of Rolling Friction
- stokes
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Understanding Newton's Law of Universal Gravitation
- Ecterine
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How far from the edge of the cliff does the model rocket land?
- kswiss880
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Rates of pressure and volume change
- coding_delight
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Space station between Earth and moon with equal gravitational forces
- pinkyjoshi65
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A mass spring system w/ recoil and Friction ?
- gills
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How Do You Solve Projectile Motion Problems Without Specific Values?
- wonderlove_525
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Boat Passenger Velocity on Stairs in 2D Motion Problem
- Enjoi_skater06
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Block on a frictionless incline
- pcandrepair
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Spring potential energy when 1 kg and 3 kg blocks separate
- jgibbon2
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Pilot diving vertically at 310 m/s, maximum 9.0g acceleration
- darewen
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Frictional force on 43 kg block at rest on 19° incline
- grouchy
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Tension in a pulley system with two masses
- lilshortwun
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Find the Moments of Inertia question
- aligass2004
- · Replies 11 ·
Three masses connected by cords over a pulley with different accelerations?
- KMjuniormint5
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Magnitude of the recoil velocity of the nucleus
- ledhead86
- · Replies 6 ·
This one has bothered me for a while (electric field)
- qz27
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What Are the Truths About the Center of Mass?
- sheri1987
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Newton's Second Law Particle Problem
- Seraph404
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Firecracker shot straight up at 54 m/s
- Bensky
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Finding coefficient of kinetic friction for spring-launched block
- shell4987
- · Replies 3 ·
Kinetic Energy of Pulley System with Unequal Weights
- sequenced_chaos
- · Replies 9 ·
Gauss's Law/Energy Problem with Concentric Spheres
- asiangrrl
- · Replies 8 ·
Why Does a Falling Particle Take 9/11 of Total Time to Cover Half the Distance?
- PiratePhysicist
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Counterweight mass for lowering actress on pulley system
- Jayce
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What Are the Force Components and Radial Acceleration in a Conical Pendulum?
- pcandrepair
- · Replies 9 ·
Car and truck collision with equal mass, combined velocity 28 m/s
- graten2go
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Work & GPE Homework Solution: m, R, h
- shell4987
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What is the Torque on an Outstretched Arm with a 21.5 N Weight?
- BuBbLeS01
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Why do dP/dT, dT/dV and dV/dP multiply to -1 for an ideal gas?
- Niles
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Calculating Horizontal Force for Displaced Hanging Object
- physicsgirlie26
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Does tension provide the centripetal force on a rotating object?
- raman911
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Calculating Maximum Speed and Initial Displacement of a Glider on a Spring
- physicsgirlie26
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What is the net torque on the pulley about the axle
- aligass2004
- · Replies 4 ·
How Do Rocket Acceleration and Car Forces Calculate in Physics Problems?
- willingtolearn
- · Replies 10 ·
Truck colliding with passenger car - Who will be more hurt?
- bugbug
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Net gravitational force on ball A from balls B and C
- bigtymer8700
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What is the initial acceleration of the rod's CM?
- BuBbLeS01
- · Replies 8 ·
Calculating Acceleration on an Inclined Ramp with Two Sliding Packages
- iHate Physics
- · Replies 10 ·
Block on steel table pulled by string: tension and velocity
- parkskier
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Measuring the wavelength and position of a photon
- zing478
- · Replies 4 ·
What is the velocity of a 178 gram object thrown 97 meters?
- Sevenzzz
- · Replies 5 ·
How do I solve problems involving rotational motion?
- BuBbLeS01
- · Replies 13 ·
Work done by a harmonic oscillator
- Hunt_
- · Replies 4 ·
Rate of revolution for a dryer?
- pcandrepair
- · Replies 13 ·
Banked Highway Curve: Calculating Maximum Safe Speed
- bikerkid
- · Replies 2 ·
Initiating Electron Movement: Magnetic, Gravitational, and Electric Fields
- razvees
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Five physics problems: friction, thrust, and tension
- soknamal
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What are the calculations for resistors in parallel?
- sskakam
- · Replies 4 ·
Maximum velocity at the top of a roller coaster?
- pcandrepair
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How Do You Calculate Relative Speed of Particles Moving Orthogonally in Physics?
- pinky86
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Answer: Object with Most Mass: Goodyear Blimp
- Wil Biscardi
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Orbit, and Centrifuge questions
- iHate Physics
- · Replies 5 ·
Acceleration down slope constant or increasing?
- MourningTide
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Problem with projectiles launched horizontally
- Aracon504
- · Replies 9 ·
Finding height and time from angle and velocity
- wunderbred5
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How Do You Solve These Two Pressure Calculation Problems?
- Vingen
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Electron Motion in a Magnetic Field: Kinetic Energy Considerations
- razvees
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How Many Revolutions Does a Car Make From Rest to a Specific Acceleration?
- feedmeister
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System with varying mass - String
- Microzero
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What are some ideas for a physics-based game project?
- fnsac
- · Replies 1 ·
How to Calculate Work on a Satellite in a Gravitational Field
- Momentum09
- · Replies 8 ·
Calculating Revolutions with Changing Acceleration on a Curve
- mashawa
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Why dimensions can be treated as algebraic quantities?
- 0000
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What Are the Coordinates of the Circle's Center?
- KMjuniormint5
- · Replies 6 ·
Calculating Net Force from Change in Velocity and Time
- rcmango
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Why Am I Getting the Wrong Answer in My 2D Motion Projectile Problem?
- Crazystuntsdude
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Finding gravity through experimental data
- BayernBlues
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Small Elastic Ball Dropped from Height of 1.1m onto an Incline
- kimjh
- · Replies 3 ·
Calculating Mass of Star from Orbital Distance and Period
- bigtymer8700
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Distance to cannon from sound and cannonball arrival times
- mike_302
- · Replies 10 ·
Impulse and average force of ball
- polymerase
- · Replies 12 ·
Phase difference in sound wave interference from two sources
- Saladsamurai
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How Do You Calculate Elevator Cable Tension Accurately?
- polymerase
- · Replies 7 ·
Solving a Lab to Place the Cup for the Ball
- Goodwillie7
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What Force Must a Window Washer Exert to Ascend at Constant Speed?
- meganw
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Conservation of Energy and Moment of Inertia
- mit_hacker
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How Is the Scattered Photon's Energy Calculated in the Inverse Compton Effect?
- MathematicalPhysicist
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Minimum speed to clear a roof with projectile motion
- klm
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Does a car braking at -11.2 m/s² hit a hole 30.0 m away?
- cherryrocket
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2 masses and 3 pulleys/accelaration
- menager31
- · Replies 29 ·
Confusion over an Inclined Plane Question
- Tyler_Cavan
- · Replies 14 ·
Solving the Question of Units for Dropped Mass on Surface
- PAU-L
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Work done dragging 56.9 kg exercise machine 71.2 m with friction
- map7s
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What would the greatest force on the vine be during the swing?
- shell4987
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Rate of Current: Solve Homework Equation for US Students
- belu00
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Will a 100 g mass slide at constant velocity down a 21° incline?
- MourningTide
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Finding tension and force components in a hanging beam system
- shane1
- · Replies 6 ·
Direction of friction on blocks with applied forces
- jumptheair
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Matching force conditions to block motion on a ramp
- jumptheair
- · Replies 6 ·
Find H of a Ski Jump: Solving a Projectile Motion Problem
- chaotixmonjuish
- · Replies 3 ·
What is the velocity of a steel block after moving 1.20 meters?
- skandaluz
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Magnitude of Acceleration of ball
- bulldog23
- · Replies 7 ·
Kinematics 2D: Find Particle's Accel. Vector
- circuscircus
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Multiple Pulley Problem [SOLUTION]
- jumptheair
- · Replies 2 ·
Calculating Satellite Speed Based on Orbit Period
- phobia
- · Replies 1 ·
Finding force and acceleration for a system with friction
- HighVoltage
- · Replies 1 ·