The solid cylindrical rotor b has a mass of 52 kg and is mounted on its central axis c-c. the frame a rotates about the fixed vertical axis o-o under the applied torque m = 44 n·m. the rotor may be unlocked from the frame by withdrawing the locking pin p. calculate the angular acceleration of the frame a if the locking pin is (a) in place and (b) withdrawn. neglect all friction and the mass of the frame.

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.