For each of the following statements select the correct options (true, false, in

Question

For each of the following statements select the correct options (true, false, increases, decreases, or stays the same).

a) you are sitting on a rotationg chair holding a 2-kg mass each on your outstreached arms. when you drop the masses, your angular velocity _______.

b) If the net torque on an object is zero, the net force on the object need not be zero.

c) If the net foce on an object is zero, the net torque on the object is always zero.

d) you are standing at the center of a large freely rotating platform. As you wal towards the edge of the platform, the rate of rotation _______.

e) two masses are rotating about a fixed axis of rotation. When the masses are brought closer to the axis, the moment of inertia_____.

Explanation / Answer

part a ) you are sitting on a rotationg chair holding a 2-kg mass each on your outstreached arms. when you drop the masses, your angular velocity stays the same ( no torque is applied to alter the angular velocity )

part b ) If the net torque on an object is zero, the net force on the object need not be zero - true

part c ) If the net foce on an object is zero, the net torque on the object is always zero - false

part d) d) you are standing at the center of a large freely rotating platform. As you walk towards the edge of the platform, the rate of rotation decreases.

part e ) two masses are rotating about a fixed axis of rotation. When the masses are brought closer to the axis, the moment of inertia decreases.

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