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AP EAMCET20225 Jul 2022Evening ShiftPhysicsGravitationActual

When a ball is dropped from a height h it takes t sec to reach the ground. If the same experiment in done on a different planet having the mass 100 times the earth's mass and radius 10 times the earth's radius, then the time it will take to cover the same height in the new planet is

Options

  1. Ats
  2. B100 ts
  3. Ct 100 ~s
  4. Dt 10 ~s

Correct answer

A. ts

Step-by-step solution

We have, g _ earth = GM R ^2 g _ planet = G 100 M (10 R )^2 = GM R ^2 = g _ earth As g_ planet =g_ earth . So time taken to cover 'h' height will be same as that on earth.

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