A block of mass m is attached by a rope to a pulley of mass M
= 2.6 kg and radius R = 18 cm. The block is
released from rest and it falls. As it falls, the tension in the
rope is 6 N. Assume the rope moves against the pulley
without slipping.
a) What is the angular acceleration of the
pulley? rad/s2
b) If the pulley is constantly accelerated from rest by the rope
for 1.4 s, what angular speed does the pulley reach by
the time the rope loses contact? rad/s