A 55-kg block, starting from rest, is pushed a distance of 5.0 m across a floor by a horizontal force Fp whose magnitude is 140 N. Fp is parallel to the displacement of the block. The final speed of the block is 2.35 m/s. a) How much work was converted to thermal energy? What work did friction do on the box? b. what is the coefficient of friction?
A 55-kg block, starting from rest, is pushed a distance of 5.0 m across a floor by a horizontal force Fp whose magnitude is 140 N. Fp is parallel to the displacement of the block. The final speed of the block is 2.35 m/s. a) How much work was converted to thermal energy? What work did friction do on the box? b. what is the coefficient of friction?
College Physics
10th Edition
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter5: Energy
Section: Chapter Questions
Problem 40P: (a) A block with a mass m is pulled along a horizontal surface for a distance x by a constant force...
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A 55-kg block, starting from rest, is pushed a distance of 5.0 m across a floor
by a horizontal force Fp whose magnitude is 140 N. Fp is parallel to the
displacement of the block. The final speed of the block is 2.35 m/s.
a) How much work was converted to thermal energy? What work did
friction do on the box?
b. what is the coefficient of friction?
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