# Impulse and Momentum

Student Learning Objectives
Lessons / Lecture Notes
Important Equations
Example Problems
Pencasts
Applets and Animations
Videos

Student Learning Objectives

• To understand the interactions from a new perspective of impulse and momentum.
• To understand and use the impulse-momentum theorem
• To learn what is meant by an isolated system.
• To apply conservation of momentum in simple situations.
• To understand the basic ideas of elastic and inelastic collisions.

Lessons / Lecture Notes

The Physics Classroom (conceptual)

PY105 Notes from Boston University (algebra-based):

Introductory physics notes from University of Winnipeg (algebra-based):

HyperPhysics (calculus-based)

PHY2048 notes from Florida Atlantic University (calculus-based):

PHY2043 notes from Florida Atlantic University (calculus-based)

General Physics I notes from ETSU (calculus-based)

Important Equations

Example Problems

Problem 1
A 1.5 kg ball drops vertically onto a floor, hitting the floor with a speed of 25 m/s.  It is in contact with the floor for 0.020 s and then rebounds to a height of 11.5 m. What is the magnitude of the average force of the floor on the ball? (Solutions)

Problem 2
Two crates are sliding on a frictionless surface as shown in the figure below. The 10 kg crate is sliding to the right at 8.0 m/s and the 25 kg crate is sliding to the left at 5.0 m/s. The two crates collide and stick together. Use conservation of momentum to find the velocity of the two crates after the collision. (Solutions)

Pencasts

Momentum
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