Question

1. In each case below, use “T” if it is ALWAYS true, and “F” it is it not necessarily true.

_____ In the absence of a net torque, an object’s angular velocity will increase.

_____ About your spinal column, your moment of inertia is smaller when your arms and legs are held against your body than when they are spread out.

_____ A block of melting ice (NOTE: this will have negligible friction) will reach the bottom of a ramp faster than a ball that rolls down the same ramp without slipping.

_____ A particular sphere will have a unique value of its moment of inertia independent of the axis of rotation due to its symmetry.

Answer 1