7. A roller of radius r = 0.3 m and weight Q = 2000 N is to be pulled over a curb of height h = 0.15 m by a horizontal force P applied to the end of a string wound around the circumference of the roller (refer figure). Find the magnitude of P required to start the roller over the curb.

7. A roller of radius r = 0.3 m and weight Q = 2000 N is to be pulled over a curb of height h = 0.15 m by a horizontal force P applied to the end of a string wound around the circumference of the roller (refer figure). Find the magnitude of P required to start the roller over the curb.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter11: Angular Momentum

Section: Chapter Questions

Problem 20P: A boy rides his bicycle 2.00 km. The wheels have radius 30.0 cm. What is the total angle the tires...

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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.

Question

Please type answer no write by hend.

7. A roller of radius r = 0.3 m and weight Q = 2000 N
is to be pulled over a curb of height h = 0.15 m
by a horizontal force P applied to the end of a
string wound around the circumference of the
roller (refer figure). Find the magnitude of P
required to start the roller over the curb.
CY
Figure
P

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Step 1: Calculate the perpendicular distance of Q from rotating point

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Step 2: Calculate the perpendicular distance of P from rotating point

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