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Two identical balls one solid and other ...

Two identical balls one solid and other hollow are allowed to roll down an inclined plane, which one of them reached the base first?

A

Hollow ball

B

Solid ball

C

Both reach together

D

None reaches

Text Solution

Verified by Experts

The correct Answer is:
B
For solid sphere `a=(5)/(7)gsintheta=0.7sintheta`
For hollow sphere `a=(3)/(5)gsintheta=0.6gsintheta`
Since acceleration of solid sphere is more than hollow sphere : solid sphere reaches the bottom first.
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