A worker pushed a 27 kg block 9.2 m along a level floor at constant speed with a force
Chapter 8, Problem 42(choose chapter or problem)
A worker pushed a 27 kg block 9.2 m along a level floor at constant speed with a force directed 32 below the horizontal. If the coefficient of kinetic friction between block and floor was 0.20, what were (a) the work done by the workers force and (b) the increase in thermal energy of the blockfloor system?
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