4. Mechanics
Momentum — Quiz
Test your understanding of momentum with 5 practice questions.
Practice Questions
Question 1
A 2.0 kg particle moving at 4.0 m/s to the right collides elastically with a 3.0 kg particle moving at –1.0 m/s. What are their velocities after the collision?
Question 2
In a perfectly inelastic collision between a 2 kg object at 6 m/s and a 3 kg object at rest, what percentage of the system’s initial kinetic energy is lost?
Question 3
Which expression defines the coefficient of restitution e for a one-dimensional collision?
Question 4
A force rises linearly from 0 N to 120 N over 4 s and then drops to 0 N instantaneously. What is the impulse delivered?
Question 5
A force F(t)=6 t³ N acts on a 2 kg object initially at rest from t=0 to t=1 s. What is its speed at t=1 s?