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BITSAT Physics Laws of Motion 2022 BITSAT 2022

BITSAT Physics Question (2022) — Solution

Question

A particle of mass m is projected with velocity v at an angle with the horizontal. At its highest point, it explodes into two pieces of equal mass, one of the piece continue to move on the original trajectory, then the velocity of second piece is

Options

  1. A. 2 v
  2. B. v
  3. C. 3 v
  4. D. v 2

Answer

B. v

Step-by-step solution

According to the law of conservation of linear momentum at the highest point, m v = m 2 (v )+ m 2 v^ m v - m 2 v = m 2 v^ v^ =2 (v - v 2 )=v

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