6. Find the angular momentum of a thin 6.9-kg rod of length7.5 m if it rotates about its midpoint at a speed of 750rpm.7. A sharp force of 0.75 KN is applied to the edge of a wheel freeto rotate. The force acts for 0.069 s. What is the final angularvelocity?

As we know, The angular momentum of a rod of mass m, (L) = m v r where angular speed (ω) = v / r…

Answered: 6. Find the angular momentum of a thin…

6. Find the angular momentum of a thin 6.9-kg rod of length 7.5 m if it rotates about its midpoint at a speed of 750rpm.

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter12: Thermal Energy

Section: Chapter Questions

Problem 85A

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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

6. Find the angular momentum of a thin 6.9-kg rod of length
7.5 m if it rotates about its midpoint at a speed of 750rpm.
7. A sharp force of 0.75 KN is applied to the edge of a wheel free
to rotate. The force acts for 0.069 s. What is the final angular
velocity?

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