MCQOPTIONS
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| 1. |
A person lifts luggage of 20 kg from the ground and puts it on his head 2 m above the ground. Calculate the work done by him. (g = 10 ms-2) |
| A. | 20 J |
| B. | 400 J |
| C. | 200 J |
| D. | 40 J |
| Answer» C. 200 J | |