Physics · Oct / Nov 2016 · Paper 11 · Question 8
5054Work
A workman rolls a barrel of weight 2000 N up a plank of length 2.0 m and onto a lorry. The back of the lorry is 0.80 m above the horizontal surface of the road. What is the work done on the barrel against gravity?
- A1000 J
- B1600 J
- C2500 J
- D4000 J
As printed in the paper
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Correct answer: B. 1600 J
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