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T F The mass moments and products of inertia are always positive or zero. T F Th

ID: 1396011 • Letter: T

Question

T F The mass moments and products of inertia are always positive or zero. T F The friction force beneath a rolling (without slip) wheel does work only f the fixed surface of contact is curved. T F In polar coordinates, a particle moving with constant dr/dt and dtheta/dt will always have zero acceleration. T F The velocity and acceleration of a point P depend on the choice of reference frame? T F The work done by the friction force upon a block sliding on a rough plane depends on the path taken by the block.

Explanation / Answer

The answers are the following

1k) T

1l) F

1m) F

1n) T

1o) T