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Weight of a Body :: Discussion
| 4. | The escape velocity in earth is 11.2km/s. What will be its value on a planet whose radius is double the radius of the earth and eight times the mass of the earth? | |
| A. | 22.2km/s | |
| B. | 22.4km/s | |
| C. | 12km/s | |
| D. | 24.2km/s | |
| Answer: Option B | |
| Explanation: | |
|
vp/ve =√((2GMp)/Rp)×√(Rg/(2GMe )) = √(Mp/Me ×Re/Rp) |
|
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