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 (a) 4.0 kg ⋅ m2/s, (b) 4.0t2 kg ⋅ m2/s, (c) 4.0 √ t kg ⋅ m 2 / s and (d) 4.0/t2 kg ⋅ m2/s?

Answer 1

Answer:

Answer of the part (a) Torque is zero .

Answer of the part(b) Net Torque is -8t N.m .

Answer of the part (c) is -2 (t)^-(1/2) N.m  .

Answer of the part (d) is 8(t)^-(3) N.m .

Explanation:

Explanation of all parts is in the following attachments.