Question

problem2
calculate the power expended when a force of 10 n moves a grocery cart 5 m in time interval of 2 s.
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Explanation:

Step1: Calculate work

Work \(W = F\times d\), where \(F = 10\space N\) and \(d=5\space m\).
\(W=10\times5 = 50\space J\)

Step2: Calculate power

Power \(P=\frac{W}{t}\), where \(W = 50\space J\) and \(t = 2\space s\).
\(P=\frac{50}{2}=25\space W\)

Answer:

25 W