MCQOPTIONS
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| 1. |
A porter lifts a luggage of 20 kg from the ground and puts it on his head 2 m above the ground. Calculate the work done by him on the luggage. (take g = 10ms-2) |
| A. | 400 J |
| B. | 200 J |
| C. | 350 J |
| D. | 150 J |
| Answer» B. 200 J | |