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Question

A truck driver can load oil drums into the back of the truck by pushing them up a sloping plank or by lifting them directly. Each drum has a mass of 80 kg, the plank is 3m long and the back of the truck is 0.8m above the ground. How much force would be needed to lift a drum into the truck directly, without using the plank? [Take g =10m/s2]


A

500 N

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B

600 N

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C

700 N

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D

800 N

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E

900 N

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