An antique carousel that's powered by a large electric motor undergoes constant angular acceleration from rest to full rotational speed in 6 seconds. when the ride ends, a brake causes it to accelerate steadily from full rotational speed to rest in 9.2 seconds. compare the torque that starts the carousel to the torque that stops it.

Estimate the kinetic energy of the neptune with respect to the sun as the sum of the terms, that due to its daily rotation about its axis, and that due to its yearly revolution about the sun. [assume the neptune is a uniform sphere with mass = 1.0×1026 kg , radius = 2.5×1010 m , rotation period 16.1 h , orbital period 6.01×104 d and is 4.6×109 km from the sun.]