Rotational Motion: JEE Main 2026 Physics question

JEE Main 2026 · 22 Jan, Evening shift · Q49

JEE Main 202622 Jan, Evening shiftPhysicsHardRotational Motion140× since 2002

Two masses

m

and

2m

are connected by a light string going over a pulley (disc) of mass

30m

with radius

r=0.1

m. The pulley is mounted in a vertical plane and it is free to rotate about its axis. The

2m

mass is released from rest and its speed when it has descended through a height of

3.6

m is ________ m/s. (Assume string does not slip and

g=10

m/s

^2

)

Your answerType your answer. Integers and decimals are accepted.

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