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Two blocks of masses 10 kg and 4 kg are ...

Two blocks of masses `10 kg` and `4 kg` are connected by a spring of negligible mass and placed on a frictionless horizontal surface. An impulse gives a velocity of `14 m//s` to the heavier block in the direction of the lighter block. The velocity of the centre of mass is

A

`30ms^(-1)`

B

`20ms^(-1)`

C

`10ms^(-1)`

D

`5ms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
C
Velocity of center of mass,
`v_(CM) = (10(14)+4(0))/(10 +4) = 10 ms^(-1)`
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