JEE Main & Advanced
Physics
Rotational Motion
Question Bank
Self Evaluation Test - System of Particles Rotational Motion
question_answer
A cylinder A rolls without slipping on a plank B. The velocities of center of the cylinder and that of the plank are 4m/s and 2m/s respectively in same direction, with respect to the ground. Find the angular velocity of the cylinder (in rad/s) if its radius is 1m.
A)2rad/sec
B)4rad/sec
C)6rad/sec
D)l0rad/sec
Correct Answer:
A
Solution :
[a] For rolling, \[{{v}_{A}}=2m/s\] or \[4-1.\omega =2\] or \[\omega =2rad/\sec \] (clockwise)