A supermarket trolley has a mass of 10 kg. When pushed by a force of 12 N, it accelerates at 0.5m/s. a) Calculate the resultant force on the trolley that gives it this acceleration. b) What is the force of friction on the trolley?
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Answer:
since f=ma
then f=10×9.8×0.5
= 49N
force of friction is also equal to 49N
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