A body is thrown on a rough surface such that the friction force acting on it is linearly varying with the distance travelled by it as `f=ax+b`. Find the work done by the friction on the box if before coming to rest the box travels a distance s.
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WORK, ENERGY AND POWER
PHYSICS GALAXY - ASHISH ARORA|Exercise Practice Exercise|42 Videos
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A block of mass m is kept over another block of mass M and the system rests on a horizontal surface. A constant horizontal force F acting on the lower block produces an acceleration (F)/(2(m+M)) in the sytem. The two blocks always move together. Consider displacement d of the system. a. Find the work done by friction on bigger block. b. Find the coefficient of kinetic friction between the bigger block and the horizontal surface. c. Find the frictional acting on the smaller block. d. Find the work done by the force of friction on the smaller block by the bigger block. e. Find the work done by static friction on bigger block.
The distance traveled by a body is directly proportional to time Is any external force acting on it ?
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