A 15 kg flywheel has all its mass around its outer rim. A string is wrapped around it and a m = 3.7 kg weight is hanging on the string. The flywheel has radius R = 0.25 m.
a) When the 3.7 kg weight is dropping with a speed of 1.7 m/s, what is the angular velocity of the flywheel?
w = ?? rad/s
b) When the 3.7 kg weight is moving with a speed of 1.7 m/s, what is the kinetic energy of the entire system?
K.E. = ?? J
c) If the system started from rest, how far has the weight fallen?
hfall = ?? m
d) What is the angular acceleration at this point?
a = ?? rad/s2