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Question

If the escape velocity on earth is 11.2km/sec, its value for a planet having double the radius and 8 times the mass of earth is ..... m/sec.
  1. 22.4 km/sec
  2. 5.6 km/sec0
  3. 11.2 km/sec
  4. 8 km/sec

A
22.4 km/sec
B
5.6 km/sec0
C
11.2 km/sec
D
8 km/sec
Solution
Verified by Toppr

Escape speed, ve=2GMR=11.2 km/s
For another planet mass is 8 times and radius is twice that of Earth.

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