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Get Full Access to Engineering Mechanics: Statics & Dynamics - 14 Edition - Chapter 17 - Problem 17-64
Get Full Access to Engineering Mechanics: Statics & Dynamics - 14 Edition - Chapter 17 - Problem 17-64

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A cord is wrapped around the outer surface of the 8-kg

ISBN: 9780133951929 123

Solution for problem 17-64 Chapter 17

Engineering Mechanics: Statics & Dynamics | 14th Edition

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Problem 17-64

A cord is wrapped around the outer surface of the 8-kg disk. If a force of F = (u2) N, where u is in radians, is applied to the cord, determine the disks angular acceleration when it has turned 5 revolutions. The disk has an initial angular velocity of v0 = 1 rad>s.

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PY 205 Week 5 Newton’s Law of Universal Gravitation - The force of gravitation exerted on one particle by a second particle is always directed toward the second particle o The total force on one particle is the vector sum of the forces exerted by each of the others - Gravity near the earth’s surface o The force of gravity due to the Earth is the weight of the object  mg = G m(mE) / r^2 where mE is the mass of the Earth o The acceleration of the gravity at Earth’s surface is dependent on mE and rE^2 - Satellites and weightlessness o Satellite motion – if the speed is too high, the satellite will be lost. If the speed is too low, it will return to Earth.

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