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# What is the power expended when a 17.3 N force pushes a cart 3.9 m in 0.9 seconds?

Work done in this process is $W = F \cdot s = 17.3 \cdot 3.9 = 67.47 J$
So,power expended is $P = \frac{W}{t} = \frac{67.47}{0.9} = 74.97$ watt
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