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For more information, please see full course syllabus of AP Physics C/Mechanics
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Lecture Comments (2)

1 answer

Last reply by: Jingwei Xie
Sat May 10, 2014 1:28 PM

Post by Narin gopaul on November 20, 2012

at the end u for got to mutiply by -32*2/.1=-640

Collisions, Part 1

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

  • Intro 0:00
  • Linear Momentum 0:10
    • Example: Object of Mass m with Velocity v
    • Example: Object Bounced on a Wall
    • Momentum of Object Hitting a Wall
    • Change in Momentum
  • Force is the Rate of Change of Momentum 4:30
    • Force=Mass*Acceleration (Newton's Second Law)
  • Impulse 10:24
    • Example: Baseball Hitting a Bat
    • Force Applied for a Certain Time
    • Magnitude Plot of Force vs Time
    • Time of Contact of Baseball = 2 milliseconds (Average Force by Bat)
  • Collision Between Two Particles 22:40
    • Two Objects Collide at Time T
    • Both Object Exerts Force on Each Other (Newton's Third Law)
    • Collision Time
    • Total Momentum Before Collision = Total momentums After Collision
  • Collision 33:58
    • Types of Collisions
    • Elastic Collision ( Mechanical Energy is Conserved)
    • Collision of Particles in Atoms
    • Collision Between Billiard Balls
    • Inelastic Collision (Rubber Ball)
    • Two Objects Collide and Stick (Completely Inelastic)
  • Completely Inelastic Collision 41:07
    • Example: Two Objects Colliding
    • Velocity After Collision
    • Heat Produced=Initial K.E-Final K.E
  • Ballistic Pendulum 47:37
    • Example: Determine the Speed of a Bullet
    • Mass Swings with Bulled Embedded
    • Kinetic Energy of Block with the Bullet
  • Extra Example 1: Ball Strikes a Wall
  • Extra Example 2: Clay Hits Block
  • Extra Example 3: Bullet Hits Block
  • Extra Example 4: Child Runs onto Sled