Physics

Problem

Two students, A and B, lift identical school bags of weight

200\,\text{N}

vertically through a height of

2\,\text{m}

. Student A takes

2\,\text{s}

while student B takes

4\,\text{s}

. Which statement about their average powers is correct? a) A’s average power is four times that of B b) A’s average power is half that of B c) A’s average power is twice that of B d) A’s average power equals that of B

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