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If a sphere of mass m moving with veloci...

If a sphere of mass `m` moving with velocity `u` collides with another identical sphere at rest on a frictionless surface, then which of the following is correct ?

A

3.6 N

B

7.2 N

C

9.0 N

D

12.6 N

Text Solution

Verified by Experts

The correct Answer is:
B

Force on the base
F = p ghA
`=900xx10xx0.4xx210^(-3)=7.2 N`
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