Question:

Escape velocity on the surface of earth is 11.2km/s. Escape velocity from a planet whose mass is the same as that of earth and radius 1/4 that of earth is

Options :

  • (a) 2.8 km/s
  • (b) 15.6 km/s
  • (c) 22.4 km/s
  • (d) 44.8 km/s

Answer :

(c) 22.4 km/s

Answer Steps :

step 1

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