Name: ______________________

Quiz 7

05/13/2005

Ch. 9

1)
A merry-go-round of radius 2m has an angular acceleration of_{}. At *t*=0 the
merry-go-round is at rest. What is the
total distance that a child

a) on the edge (at a radius of 2m) moved after 10s?

b) half way to the center (at a radius of 1m) moved after 10s?

c)
at the center (at a radius of 0m) moved after 10s?

2)
Three
equal masses M are placed at the corners of a right triangle with the right angle
corner at the origin. One particle at
the origin _{}, one at _{}, and one at _{}.

a) What is the moment of
inertia about the z axis?

b) What is the moment of
inertia about the z axis if M=4 kg, *A*=1.6m, and *B*=2.4m?