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KCET 2016 Physics Solved Paper

Question : 7

Total: 60

Solution:

The velocity of a body rolling without slipping down oninclined plane is given as
v=√‌

2gh

1+K2/R2

Here, K is the radius of gyration.
For ring, K = R
⇒vR=√gh
For solid sphere,K=√

R
⇒vs=√‌

10gh

For solid cylinder,K=

√2

⇒vc=√‌

4gh

$∴v_{ {R}}

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