A skier of mass 70 kg if pulled up a slope by a motor-driven cable. (a) How much work isrequired to pull him 60 m up a 30 degree slope (frictionless) at a constant speed of 2 m/s? (b)What power must a motor have to perform this task?
A skier of mass 70 kg if pulled up a slope by a motor-driven cable. (a) How much work isrequired to pull him 60 m up a 30 degree slope (frictionless) at a constant speed of 2 m/s? (b)What power must a motor have to perform this task?
Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter10: Work, Energy And Machines
Section: Chapter Questions
Problem 40A
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A skier of mass 70 kg if pulled up a slope by a motor-driven cable. (a) How much work is
required to pull him 60 m up a 30 degree slope (frictionless) at a constant speed of 2 m/s? (b)
What power must a motor have to perform this task?
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