JEE Main 2024PhysicsCenter of Mass Momentum and CollisionEasyMCQ

JEE Main 2024 — Center of Mass Momentum and Collision Question with Solution

JEE Main 2024 (27 Jan Shift 1)

Question

A body of mass 1000 kg is moving horizontally with a velocity 6 m s-1. If 200 kg extra mass is added, the final velocity (in m s-1) is:

Choose an option

Show full solutionCorrect option: D
Correct answer
D5

Step-by-step explanation

From the conservation of linear momentum, it can be written that

Mu=M+mv   ...1

where, M is the initial mass, u is the initial velocity, m is the extra mass added and v is the final velocity of the composition.

From equation (1), it follows that

1000×6=1200×v⇒v=5 m s-1

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About this question

This is a previous-year question from JEE Main 2024, 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.