MCQOPTIONS
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| 1. |
A body of mass m rises to a height h = R/5 from the earth’s surface where R is earth’s radius. If g is acceleration due to gravity at the earth’s surface, the increase in potential energy will be |
| A. | mgh B |
| B. | 4/5 mgh |
| C. | 5/6 mgh |
| D. | 6/7 mgh |
| Answer» D. 6/7 mgh | |