In the winter sport of curling players give a 20kg stone a, Ask an Expert

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In the winter sport of curling, players give a 20kg stone a push across a sheet of ice. A curler accelerates a stone to a speed of 3.1m/s over a time 2.2s

a) How much force does the curler exert on the stone?

b) What average power does the curler use to bring the stone up to speed?

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