40. GO The drawing shows two boxes resting on frictionless ramps. One box is relatively light and sits on a steep ramp. The other box is heavier and rests on a ramp that is less steep. The boxes are released from rest at A and allowed to slide down the ramps. The two boxes have masses of 11 and 44 kg. If A and B are 4.5 and 1.5 m, respectively, above the ground, determine the speed of (a) the lighter box and (b) the heavier box when each reaches B. (c) What is the ratio of the kinetic energy of the heavier box to that of the lighter box at B? VA = 0 m/s VA = 0 m/s ha = 4.5 m B- hg = 1.5 m

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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40. GO The drawing shows two boxes resting on frictionless ramps. One
box is relatively light and sits on a steep ramp. The other box is heavier
and rests on a ramp that is less steep. The boxes are released from rest at
A and allowed to slide down the ramps. The two boxes have masses of 11
and 44 kg. If A and B are 4.5 and 1.5 m, respectively, above the ground,
determine the speed of (a) the lighter box and (b) the heavier box when
each reaches B. (c) What is the ratio of the kinetic energy of the heavier
box to that of the lighter box at B?
VA = 0 m/s
VA = 0 m/s
ha = 4.5 m
B-
hg = 1.5 m
Transcribed Image Text:40. GO The drawing shows two boxes resting on frictionless ramps. One box is relatively light and sits on a steep ramp. The other box is heavier and rests on a ramp that is less steep. The boxes are released from rest at A and allowed to slide down the ramps. The two boxes have masses of 11 and 44 kg. If A and B are 4.5 and 1.5 m, respectively, above the ground, determine the speed of (a) the lighter box and (b) the heavier box when each reaches B. (c) What is the ratio of the kinetic energy of the heavier box to that of the lighter box at B? VA = 0 m/s VA = 0 m/s ha = 4.5 m B- hg = 1.5 m
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