The motion of a rocket in upward direction with high speed is based on the principle of conservation of

The motion of a rocket in upward direction with high speed is based on the principle of conservation of
  1. Kinetic energy.
  2. mass.
  3. angular momentum.
  4. linear momentum.

Solution

Taking rocket + fuel as system total linear momentum must be conserved since there is no external force. As the exhaust moves out with high speed towards the Earth , the rocket moves with same momentum away from the earth as the net momentum should be zero.

Asked in: MHT CET 2020 (14 Oct Shift 1)

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