## Physics Help >> Index to Physics Homework Help » Momentum quiz 1

 New Problems reloads the page with new variable values in all questions. You must do this after grading the test to rework it another time. Make sure to enter your answers in the specified units .
 1
Lee has a mass of kg and ice skates with a speed of m/s. She collides into Mat ( kg) who is standing still on the ice. They move off together. What is their final speed in m/s?

 2
A -kg gun at rest contains a -kg bullet. When fired, the bullet leaves the gun with a forward velocity of m/s. What is the recoil velocity of the gun in m/s?

 3
A g ball moving to the right at m/s is struck by a bat causing it to move to the left with a speed of [y] m/s. If the bat and ball are in contact for s, what is the average force in N exerted by the ball on the bat?

 4
A -kg boy running at m/s jumps onto a stationary cart. They move off together at m/s. What is the mass of the cart in kg?

 5
A kg football player running m/s in the positive direction tackles a kg opponent running toward him at 10.0 m/s and holds on. What is their velocity in m/s just after the collision?

Once you have submitted your answers for grading by clicking the grade button, you cannot resubmit answers for the same Problem Set--you must use the 'New Problems' button first.