A solid cylindrical steel wheel has a mass of 20 kg and a radius of 30 cm. It is made to rotate from rest to 570 rpm in 18.0s. a) What torque must be applied to the wheel? b) If a torque is applied by wrapping a strap around the outside of the wheel, how much force should be exerted on the strap?

A solid cylindrical steel wheel has a mass of 20 kg and a radius of 30 cm. It is made to rotate from rest to 570 rpm in 18.0s. a) What torque must be applied to the wheel? b) If a torque is applied by wrapping a strap around the outside of the wheel, how much force should be exerted on the strap?

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter10: Rotational Motion And Angular Momentum

Section: Chapter Questions

Problem 39PE: A playground merry-go-round has a mass of 120 kg and a radius of 1.80 m and it is rotating with an...

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Concept explainers

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.

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10. A solid cylindrical steel wheel has a mass of 20 kg and a radius of 30
cm. It is made to rotate from rest to 570 rpm in 18.0s.
a) What torque must be applied to the wheel?
b) If a torque is applied by wrapping a strap around the outside
of the wheel, how much force should be exerted on the strap?
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(d)

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