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A 47.2-kg block of ice slides down an incline. 1.62 m long and 0.902 m high. A worker pushes up on the ice parallel to the incline so that it slides down at constant speed. The coefficient of kinetic friction between the ice and the incline is 0.100. Find (a) the force exerted by the worker, (b) the work done by the worker on the block of ice, and (c) the work done by gravity on the ice.

A 47.2-kg block of ice slides down an incline. 1.62 m long and 0.902 m high. A worker pushes up on the ice parallel to the incline so that it slides down at constant speed. The coefficient of kinetic friction between the ice and the incline is 0.100. Find (a) the force exerted by the worker, (b) the work done by the worker on the block of ice, and (c) the work done by gravity on the ice.

Grade:upto college level

1 Answers

Navjyot Kalra
askIITians Faculty 654 Points
8 years ago
(a)
The below figure shows a 47.2 kg block of ice slides down an incline 1.62 m long and 0.902 m high.
Figure:
232-2197_1.PNG
232-280_1.PNG
232-2094_1.PNG
232-177_1.PNG

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