# Question: A merry go round accelerating uniformly from rest achieves its operating speed

A merry-go-round accelerating uniformly from rest achieves its operating speed of 2.5 rpm in 5 revolutions. What is the magnitude of its angular acceleration?

**View Solution:**## Answer to relevant Questions

A flywheel rotates with an angular speed of 25 rev/s. As it is brought to rest with a constant acceleration, it turns 50 rev. (a) What is the magnitude of the angular acceleration? (b) How much time does it take to stop? In the spin-dry cycle of a modern washing machine, a wet towel with a mass of 1.50 kg is “stuck to” the inside surface of the perforated (to allow the water out) washing cylinder. To have decent removal of water, clothes ...A 100 kg object is taken to a height of 300 km above the Earth’s surface. (a) What is the object’s mass at this height? (b) What is the object’s weight at this height? (a) What is the mutual gravitational potential energy of the configuration shown in Fig. 7.36 if all the masses are 1.0 kg? (b) What is the gravitational force per unit mass at the center of the configuration? A small space probe is put into circular orbit about a newly discovered moon of Saturn. The moon’s radius is known to be 550 km. If the probe orbits at a height of 1500 km above the moon’s surface and takes 2.00 Earth ...Post your question