The escape speed of a body from the Earth depends on:

1. the mass of the body.
2. the location from where it is projected.
3. the direction of projection.
4. the height of the location from where the body is launched.
Subtopic:  Escape velocity |
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The escape speed of a projectile on the Earth’s surface is \(11.2 ~\text{Km/s}.\) A body is projected out with thrice this speed. What is the speed of the body far away from the Earth?  (Ignore the presence of the sun and other planets.)
1. \(32.7 ~\text{Km/s}\)

2. \(11.2 ~\text{Km/s}\)
3. \(31.7 ~\text{Km/s}\)

4. \(21.2 ~\text{Km/s}\)

Subtopic:  Escape velocity |
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Level 3: 35%-60%
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