Name: ______________________

Quiz 6

10/28/2008

Ch. 7

1) 2 50kg skaters are at rest separated by 2m on frictionless ice. One skater throws 5kg ball to the other skater at a velocity of 5m/s due east. Assume all of the motion is along a line.

a) What is the total momentum of skaters and ball before the ball is thrown?

b) What is the total momentum of skaters while the ball is in the air?

c) What is the total momentum of skaters and ball after the ball is caught?

d) What is the final momentum of the skater that threw the ball?

e)
What is the final *velocity* of the skater that threw the
ball?

f) What is the final momentum of the skater that caught the ball?

g)
What is the final *velocity* of the skater that caught
the ball?