Answer: Power is 200 W
Explanation: Power P = work done / time used.
P = W/t = mgh/t = 154 kg · 9.81 m/s²· 4 m / 30 s = 201 W
Answer:
Explanation:
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These forces form a force pair. Use Newton's third law, and you see that the trailer pulls back at with the same force. The answer is d.