Question

13. A new ride has a radius of 50.0 m and a mass of 1.20X10^6 kg. If the torque of 1.0X10^9 N.m is needed to turn the ride from a state of rest, what would the ride's angular acceleration be. Treat the ride as a thin hoop.

14. When you are asleep in an unconscious state mice like to play. One night a 3.0 kg mouse for fun was hanging at the end of a 2.0m long string that is hanging from a pivot point. Calculate the magnitude of the torque due to the force of gravity around this pivot point when the string makes a 5.0-degree angle with the vertical. What is it when the angle is 15 degrees?

Answer 1