Physics - Rotation Question with Solution | TestHub

PhysicsRotationTranslational + RotationalEasy2 minPYQ_2020
PhysicsEasysingle choice

A solid cylinder is given a velocity v0 and an angular speed ω0 in the anticlockwise direction and then it is placed gently on a very long rough plank (initially at rest) as shown in the figure. Then, choose the incorrect statement:

Options:

Answer:
D
Solution:

Initial velocity of point of contact of disc is in forward direction.

Hence friction is in backward direction and kinetic in nature.

Net force on the system is zero. So momentum is conserved.

Subject:PhysicsTopic:RotationSubtopic:Translational + Rotational
2mℹ️ Source: PYQ_2020

Doubts & Discussion

Loading discussions...