JEE Main 2012 — Center of Mass Momentum and Collision Question with Solution
JEE Main 2012 (12 May Online)
Question
A projectile moving vertically upwards with a velocity of breaks into two equal parts at a height of . One part starts moving vertically upwards with a velocity of . How much time it will take, after the break up with the other part to hit the ground?
Choose an option
Show full solutionCorrect option: C
Correct answer
C
Step-by-step explanation
Momentum before explosion = Momentum after explosion i.e., the velocity of the other part of the mass, Let time taken to reach the earth by this part be Applying formula,
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This is a previous-year question from JEE Main 2012, covering the Center of Mass Momentum and Collision chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.