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# A 2.00-kg rock has a horizontal velocity of magnitude 12.0 ISBN: 9780321675460 31

## Solution for problem 37E Chapter 10

University Physics | 13th Edition

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Problem 37E

A 2.00-kg rock has a horizontal velocity of magnitude 12.0 m/s when it is at point P in ?Fig. E10.35?. (a) At this instant, what are the magnitude and direction of its angular momentum relative to point ?O?? (b) If the only force acting on the rock is its weight, what is the rate of change (magnitude and direction) of its angular momentum at this instant? Fig. E10.35

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Solution 37E The numerical expression for angular momentum is given by, L = mvrsin …..(1) Here, m is the mass of the object, v is its velocity and rsin is the perpendicular distance of the axis of rotation to the object. The rate of change of angular momentum is torque. Given in the question, m = 2.00 kg v = 12.0 m/s r = 8.00 m 0 Therefore, the perpendicular distance is = rsin = 8.00 m × sin 36.9 = 4.80 m (a) Substituting these values in equation (1), Angular momentum L = 2.00 kg × 12.0 m/s × 4.80 m × 4.80 m 2 L = 115 kg.m /s...

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##### ISBN: 9780321675460

The answer to “A 2.00-kg rock has a horizontal velocity of magnitude 12.0 m/s when it is at point P in ?Fig. E10.35?. (a) At this instant, what are the magnitude and direction of its angular momentum relative to point ?O?? (b) If the only force acting on the rock is its weight, what is the rate of change (magnitude and direction) of its angular momentum at this instant? Fig. E10.35” is broken down into a number of easy to follow steps, and 68 words. The full step-by-step solution to problem: 37E from chapter: 10 was answered by , our top Physics solution expert on 05/06/17, 06:07PM. This textbook survival guide was created for the textbook: University Physics, edition: 13. University Physics was written by and is associated to the ISBN: 9780321675460. Since the solution to 37E from 10 chapter was answered, more than 3348 students have viewed the full step-by-step answer. This full solution covers the following key subjects: its, magnitude, Rock, direction, angular. This expansive textbook survival guide covers 26 chapters, and 2929 solutions.

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