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Two blocks of masses 5kg and 2kg are con...

Two blocks of masses 5kg and 2kg are connected by a spring of negligible mass and placed on a frictionless horizontal surface. An impulse provides a velocity of 7m/s to the heavier block in the direction of the lighter block. The velocity of the centre of mass is :-

A

4 m/s

B

5 m/s

C

2 m/s

D

3 m/s

Text Solution

Verified by Experts

The correct Answer is:
B
`v_(cm) = (m_(1)v_(1) +m_(2)v_(2))/(m_(1)+m_(2))`
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NARAYNA-SYSTEM OF PARTICLES AND ROTATIONAL MOTION -EXERCISE - I(H.W)
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  19. A disc of radius 0.1 m starts from rest with an angular acceleration o...

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