Physics-
General
Easy
Question
A horizontal plane supports a fixed vertical cylinder of radius R and a particle is attached to the cylinder by a horizontal thread AB as shown in figure. A horizontal velocity v0 is imparted to the particle, normal to the thread, during subsequent motion–
- angular momentum of particle about O remains constant
- angular momentum about B remains constant
- momentum and kinetic energy both remain constant
- kinetic energy alone remains constant
- angular momentum of particle about O remains constant
- angular momentum about B remains constant
- momentum and kinetic energy both remain constant
- kinetic energy alone remains constant
The correct answer is: kinetic energy alone remains constant
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