A particle is to move in an xy plane, clockwise around the origin as seen from t

Question

A particle is to move in an xy plane, clockwise around the origin as seen from the positive side of the z axis. In unit-vector notation, what torque acts on the particle if the magnitude of its angular momentum about the origin is the following. (Use the following as necessary: t.)

A particle is to move in an xy plane, clockwise around the origin as seen from the positive side of the z axis. In unit-vector notation, what torque acts on the particle if the magnitude of its angular momentum about the origin is the following. (Use the following as necessary: t.) 8.0 (kg · m2/s) 8.0t2 (kg · m2/s) 8.0 8.0/t2 (kg · m2/s)

Explanation / Answer

torque = dL/dt

a) torque = 0

b) torque = 16t

c) torque = 8

d)torque = 16/t^1

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