1. A huge box having a mass of 6.80 kg is pulled down along a frictionless surface inclined at 42.0° below the horizontal by a constant force of 7.21 N that is parallel to the incline. The baggage was initially at rest at the top of the ramp and is moving at 5.52 m/s when it reaches the bottom of the ramp. The coefficient of kinetic friction between the box and the inclined surface is 0.39. (a) How much work is done on the box by all forces acting on it? (b) How long is the inclined surface?
1. A huge box having a mass of 6.80 kg is pulled down along a frictionless surface inclined at 42.0° below the horizontal by a constant force of 7.21 N that is parallel to the incline. The baggage was initially at rest at the top of the ramp and is moving at 5.52 m/s when it reaches the bottom of the ramp. The coefficient of kinetic friction between the box and the inclined surface is 0.39. (a) How much work is done on the box by all forces acting on it? (b) How long is the inclined surface?
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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Transcribed Image Text:1. A huge box having a mass of 6.80 kg is pulled down along a frictionless surface inclined at
42.0° below the horizontal by a constant force of 7.21 N that is parallel to the incline. The
baggage was initially at rest at the top of the ramp and is moving at 5.52 m/s when it
reaches the bottom of the ramp. The coefficient of kinetic friction between the box and the
inclined surface is 0.39. (a) How much work is done on the box by all forces acting on it?
(b) How long is the inclined surface?
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