GAT Subject
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Forces and Inertia :: Discussion
| 5. | A ball of mass 2kg and another of mass 4kg are dropped together from a 60feet tall building. After a fall of 30 feet each towards earth, their respective kinetic energies will be in the ration of? | |
| A. | √2:1 | |
| B. | 1:4 | |
| C. | 1:2 | |
| D. | 1:√2 | |
| Answer: Option C | |
| Explanation: | |
|
Both balls attain same velocity v after falling through 30 feet height. |
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