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23 Nov 2019
A worker pushed a 19 kg block 13 m along a level floor at constantspeed with a force directed 33° below the horizontal. If thecoefficient of kinetic friction between block and floor was 0.23,what were (a) the work done by the worker's force and (b) theincrease in thermal energy of the block-floor system?
thanks
A worker pushed a 19 kg block 13 m along a level floor at constantspeed with a force directed 33° below the horizontal. If thecoefficient of kinetic friction between block and floor was 0.23,what were (a) the work done by the worker's force and (b) theincrease in thermal energy of the block-floor system?
thanks