Principles of Physics 11th ISV Edition · Rolling, Torque, and Angular Momentum · Problem 65
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Walker, Halliday & Resnick — Rolling, Torque, and Angular Momentum: Problem 65
65 Two 2.00 kg balls are attached to the ends of a thin rod of length 50.0 cm and negligible mass. The rod is free to rotate in a vertical plane without friction about a horizontal axis through its center. With the rod initially horizontal (Fig. 11-52), a 50.0 g wad of wet putty drops onto one of the balls, hitting it with a speed of 3.00 m/s and then sticking to it. (a) What is the angular speed of the system just after the putty wad hits? (b) What is the ratio of the kinetic energy of the system after the collision to that of the putty wad just before? (c) Through what angle will the system rotate before it momentarily stops?
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주어진 조건: 2.00 kg, 50.0 cm, , a, 50.0 g, 3.00 m
구하는 것: (a) What is the angular speed of the system just after the putty; (b) What is the ratio of the kinetic energy of the system after; (c) Through what angle will the system rotate before it momentar
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Principles of Physics · 11th ISV Edition
저자: Walker, Halliday & Resnick
출판사: Wiley
단원: Rolling, Torque, and Angular Momentum