Two identical blocks, A and B, are initially at rest on a level, frictionless surface. At time t = t,, hands begin to push the blocks toward each other as shown at right. Each hand exerts a constant horizontal force of magnitude F. At time t = tz, each block has moved a distance d, from its initial position. Each hand pushes with a constant force of magnitude F A %3D A. During the interval from t, to tz: 1 = 1, 1. Is the work done on block A by the hand positive, negative, or zero? Explain. A B Kd, -d 2. Is the work done on block B by the hand positive, negative, or zero? Explain.
Two identical blocks, A and B, are initially at rest on a level, frictionless surface. At time t = t,, hands begin to push the blocks toward each other as shown at right. Each hand exerts a constant horizontal force of magnitude F. At time t = tz, each block has moved a distance d, from its initial position. Each hand pushes with a constant force of magnitude F A %3D A. During the interval from t, to tz: 1 = 1, 1. Is the work done on block A by the hand positive, negative, or zero? Explain. A B Kd, -d 2. Is the work done on block B by the hand positive, negative, or zero? Explain.
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:Two identical blocks, A and B, are initially at rest on
a level, frictionless surface. At time t = t,, hands
begin to push the blocks toward each other as shown
at right. Each hand exerts a constant horizontal force
of magnitude F. At time t = tz, each block has moved
a distance d, from its initial position.
Each hand pushes
with a constant force
of magnitude F
A
%3D
A. During the interval from t, to tz:
1 = 1,
1. Is the work done on block A by the hand
positive, negative, or zero? Explain.
A
B
Kd, -d
2. Is the work done on block B by the hand positive, negative, or zero? Explain.
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