A sphere of mass 0.5 kg and diameter 1 m...

A sphere of mass 0.5 kg and diameter 1 m rolls without sliding with a constant velocity of 5 m/s. What is the ratio of rotational KE to the total kinetic energy of the sphere ?

`7/10`

`5/7`

`2/7`

`1/2`

Text Solution

Verified by Experts

The correct Answer is:

Required fraction
`=("Rotational KE")/("Total KE")`
`=(1/5mv_(CM)^(2))/(1/2mv_(CM)^(2)+1/5mv_(CM)^(2))=2/7`

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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise PHYSICS & CHEMISTRY|50 Videos
PRACTICE SET 19
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