Introductory Physics Homework Help Forum

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Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Tarzan vine Conservation of Energy
  • bmarvs04
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2
How far is the center of mass from the handle end of the club-axe?
  • bkhofmann
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9
Caclulating Acceleration /w Coefficent
  • vll.toxos
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2
Ball Drop Question: How High Will It Go?
  • llee8820
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5
What is the Radial Acceleration of a Painting at 38.9° North?
  • trainumc
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4
The electric field at a midpoint of two charges
  • marrone
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3
Pulley system with a weight's acceleration of g/5
  • DocZaius
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6
Maximum Distance Traveled of a Block on an Inclined Plane
  • Sligh
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Determine the work done to move the particle
  • Bones
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2
Is Terminal Velocity Linear or Curved for Varying Weights?
  • doctorjanitor
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6
Calculating parabolic equations for a trajectory project.
  • Andrew Neal
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1
How Do You Calculate Projectile Motion in Physics?
  • Smarties07
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1
Retarding Force and Velocity of a Sliding Rock
  • carlee172
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4
Motion in a Vertical Circle (Pendulum)
  • cturtle
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1
Probability in the Stern Gerlach
  • ZoroP
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2
Newtons applied to a constant velocity
  • JohnnyB212
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1
Having trouble connecting Lorentz transformations with my problem
  • m00npirate
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7
How to solve planet orbital question
  • HelloMotto
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3
Roller coaster and Potential Energy
  • scurry18
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10
Static and kinetic friction on an incline
  • a18c18
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3
Solving Vectors Problem: 4 People Pulling on Rope at Square Corners
  • myoplex11
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Object falls from the OUTSIDE of a loop
  • gorockscards
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2
Super ball Acceleration question
  • physics_geek
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5
Free Fall: Questions & Solution
  • katia11
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3
Rotational Motion (should be easy-need quick tip)
  • mistymoon_38
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2
Block on Spring without Friction and speed
  • Lanc1988
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8
Finding Accerleration on a slope with friction
  • fallen186
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1
Work of a Spring: Does Compression/Stretching Always Result in Negative Work?
  • rwx1606
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1
How Far Will an Arrow Travel When Launched at a Specific Angle and Velocity?
  • patv
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3
Designing a Curved Highway Exit Ramp
  • BuBbLeS01
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7
How can I use MATLAB for curve fitting and generating an equation for g(f)?
  • coffeem
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How High and At What Angle Should Person B Shoot to Hit Person A?
  • gen.nutville
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1
What Are the Dimensions of Volume and Speed in Terms of Length, Mass, and Time
  • ch2kb0x
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1
Relative Motion Question (PHYSICS 20)
  • whitsstar
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1
Potential/Kinetic Energy Again.
  • omgitsmonica
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1
Centrepetal Force & Inclined Plane
  • Grogerian
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1
How Much Kinetic Energy Does a Ball Gain When Air Resistance Is Considered?
  • omgitsmonica
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Thermal equilibrium (thermodynamics)
  • YuUZoe
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Calculate the magnitude of the average net force on the car
  • Chrisleo13
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2
Calculating Magnitude of Contact Force Between Boxes 1 & 2
  • BugsSport
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Mechanical energy equation analysis
  • tippetmaster
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10
Calculating Takeoff Speed for Jumbo Jet: m/s^2
  • ghoff36
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3
How Do You Calculate Mass and Friction in a Two-Block System?
  • a18c18
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5
How Do You Calculate Initial Speed in an Inelastic Collision?
  • pstfleur
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How to Calculate Constant Acceleration and Distance?
  • Masq
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1
Understanding F=ma: How to Prove It with Conical Pendulum Equations"
  • wanu
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Time Spent in Top and Bottom 25 cm of Basketball Player's Jump?
  • ghoff36
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3
Forces with friction- How fard does the sled travel?
  • sour punch
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2
Tension on a Vertical Circle- Conceptual Question
  • kmridgeway
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2
Discover the Initial Acceleration of a Stone Stuck in a Car's Tire Groove
  • musicfairy
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Why Does Pulling at an Angle Affect the Normal Force on a Box?
  • keemosabi
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What Is the Speed and Direction of the Second Hockey Puck After Collision?
  • ~*Noor*~
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Analyzing an Elastic Collision Between Two Hockey Pucks
  • nsaZn23
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5
Work done by gravity on falling object
  • Serik
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Frequency vs response Curve of a microphone
  • sanado
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Motion of blocks with kinetic friction
  • tmacarel
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Simple Work and Energy question
  • pinkerpikachu
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Finding the Change in Kinetic Energy of a Box on a Rough, Horizontal Floor
  • scurry18
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6
Equations of Motion: Solving "Reaction Time" Homework
  • jackleyt
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Forces: rope pulling bucket upward
  • Maiia
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9
How can you determine the normal force?
  • davidelete
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4
How Does Touching an Uncharged Sphere to a Charged Sphere Affect Their Charges?
  • salman213
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Solving Force Graph Problems: Work, Kinetic Energy, and Speed Calculations
  • ff4930
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Solve (d1 + d2) . (d1 x 4d2): Unit Vector Question
  • Shatzkinator
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Find Parallel Component of Vector B to Vector A | Basic Unit Vector Help
  • RWirth91
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2
Friction on Inclines: Find Distance Box Travels Before Stopping
  • keemosabi
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Capacitors in paralell disconnected then connected to each other
  • Staple Gun
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6
Kinetic/Thermal Energy Problem
  • maniacp08
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Calculating Charge Stored on Parallel Plates with Non-Conducting Water
  • Tekmachine
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Work Problem, opposing forces (no friction)
  • Bones
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Quick Question about Refraction and Light
  • sethie2000
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Photoelectric effect and kinetic energy
  • tony873004
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Two Hanging mass's attached to one on the table
  • charan1
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Static system + a second long distance force
  • imzkris
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Frictional Forces in Stacked Blocks: A FBD Approach
  • phil ess
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5
What Is the Required Launch Angle to Clear a Wall in Projectile Motion?
  • ScullyX51
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Mass on incline will it slip or stick?
  • charan1
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Problem-Solving: Calculating Forces on Moving Objects [4 Examples]
  • momina4468
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Physics hot air balloon problem
  • jodo658
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Is There a Geometric Link Between the Ratios in Eratosthenes' Experiment?
  • NateTheGreat
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Calculating Force Needed to Stop Piano on 27° Incline
  • Bones
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Calculating Average Force: 0.110 kg Baseball Strikes Catcher's Mitt
  • JohnnyB212
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Electric Field in a Wire (Concepts)
  • Staple Gun
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How Does Relative Motion Affect Perceived Velocity?
  • wallace13
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Calculating Water Speed in a River Rapids
  • dislike
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How to find Speed and Direction
  • zuber
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How Does a Climbing Man Affect the Center of Mass in a Pulley System?
  • ritwik06
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How Fast Does Your Suitcase Travel on a Baggage Carousel?
  • rcrx
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Calculating Vo in Projectile Motion: 800m Distance with 70° Angle in 4 Seconds
  • DrkCould
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Solving Two Boxes & Friction Motion Problem
  • JoeTrumpet
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Realistic Bus Cornering Speed: Physics Analysis of "Speed" Movie | 1994 Film
  • chris123
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Coefficient of friction between the block and the ramp
  • myk127
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3
How Long Does It Take the Second Satellite to Orbit Jupiter?
  • trainumc
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3
What Is the Best Angle for Maximum Projectile Motion?
  • Gustason
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How Is Work Calculated on a Block Sliding Down a Frictionless Incline?
  • maniacp08
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8
How Do You Calculate Acceleration in a Two-Mass System with Newton's Laws?
  • dorkee
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Using Normal Force on inclined plane vs banked curve
  • Rick4
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Block, Ramp, Friction, and Spring Due Tomorrow
  • rgalvan2
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How Does the Volume of a Diver's Exhaled Bubble Change from Deep Sea to Surface?
  • latitude
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Mechanical Energy Lost In A One-dimensional Collision
  • NoPhysicsGenius
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3