MCQOPTIONS
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MCQOPTIONS
| 1. |
A body falls freely under gravity. Its velocity is v when it has lost potential energy equal to U. What is the mass of the body? |
| A. | \[{{\operatorname{U}}^{2}}/{{v}^{2}}\] |
| B. | \[2{{\operatorname{U}}^{2}}/{{v}^{2}}\] |
| C. | \[2\operatorname{U}/{{v}^{2}}\] |
| D. | \[\operatorname{U}/{{v}^{2}}\] |
| Answer» D. \[\operatorname{U}/{{v}^{2}}\] | |