A 290-kg piano slides 4.2 m down a 35˚ unloading ramp. A man is pushing back on the piano with the force of 820 N at the angle of 20˚ below the plane of the ramp, so that the piano's slide proceeds at constant velocity. Find the work of friction during the slides.
A 290-kg piano slides 4.2 m down a 35˚ unloading ramp. A man is pushing back on the piano with the force of 820 N at the angle of 20˚ below the plane of the ramp, so that the piano's slide proceeds at constant velocity. Find the work of friction during the slides.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A 290-kg piano slides 4.2 m down a 35˚ unloading ramp. A man is pushing back on the piano with the force of 820 N at the angle of 20˚ below the plane of the ramp, so that the piano's slide proceeds at constant velocity. Find the work of friction during the slides.
a. 2500 J
b. -2500 J
c. 3600 J
d. -3600 J
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