JEE Main 2026 — Center of Mass Momentum and Collision Question with Solution
JEE Main 2026 (06 April Shift 2)
Question
Two identical bodies and of equal masses have initial velocities m/s and m/s respectively. The body has acceleration m/s while the acceleration of the other body is zero. The centre of mass of the two bodies moves in __________ path.
Choose an option
Show full solutionCorrect option: C
Correct answer
Cstraight line
Step-by-step explanation
Velocity of the centre of mass is given by:
Since , we get:
m/s
Acceleration of the centre of mass is given by:
m/s
Here, and .
Since the initial velocity and acceleration of the centre of mass are parallel to each other, the centre of mass moves in a straight line path.
Answer: straight line
Since , we get:
m/s
Acceleration of the centre of mass is given by:
m/s
Here, and .
Since the initial velocity and acceleration of the centre of mass are parallel to each other, the centre of mass moves in a straight line path.
Answer: straight line
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This is a previous-year question from JEE Main 2026, 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.