Physics - Rotation Question with Solution | TestHub

PhysicsRotationMiscellaneousMedium3 minCT46
PhysicsMediummultiple choice

A uniform rod AB of length 7m is undergoing combined rotational and translational motion on smooth horizontal surface such that, at some instant of time, velocities of its end point A and centre C are both perpendicular to the rod and opposite in direction, having magnitude 11 m/s and 3 m/s respectively as shown in the fig. Now consider that no external force and torque is acting on the rod. Then select correct options.

CT46 m11 diagram

Options:(select one or more)

Answer:
A, B, C
Solution:

Relative endpoint speed is 14 m/s over 3.5 m, hence ω=4 rad/s.

With no external force or torque, aC=0 and α=0. Thus both endpoint accelerations have magnitude ω²L/2=56 m/s².

Stream:JEESubject:PhysicsTopic:RotationSubtopic:Miscellaneous
3mℹ️ Source: CT46

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