Fundamentals of Physics Extended 12th Edition Β· Rolling, Torque, and Angular Momentum Β· Problem 43_E
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Halliday, Resnick & Walker β Rolling, Torque, and Angular Momentum: Problem 43_E
In Fig. 11.25, two skaters, each of mass 50 kg, approach each other along parallel paths separated by 3.0 m. They have opposite velocities of 1.4 m/s each. One skater carries one end of a long pole of negligible mass, and the other skater grabs the other end as she passes. The skaters then rotate around the center of the pole. Assume that the friction between skates and ice is negligible. What are (a) the radius of the circle, (b) the angular speed of the skaters, and (c) the kinetic energy of the two-skater system? Next, the skaters pull along the pole until they are separated by 1.0 m. What then are (d) their angular speed and (e) the kinetic energy of the system? (f) What provided the energy for the increased kinetic energy?
π Solution Approach
Given: 50 kg, 3.0 m, 1.4 m, 1.0 m
Find: (a) the radius of the circle; (b) the angular speed of the skaters; (c) the kinetic energy of the two-skater system? Next
This problem covers key concepts in Rolling, Torque, and Angular Momentum from Fundamentals of Physics Extended 12th Edition by Halliday, Resnick & Walker. The step-by-step solution involves applying fundamental principles and systematic analysis to arrive at the correct answer. Full solution available with a Solution Pass.
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Fundamentals of Physics Extended Β· 12th Edition
Author: Halliday, Resnick & Walker
Publisher: Wiley
Chapter: Rolling, Torque, and Angular Momentum