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A particle of mass m is thrown horizonta...

A particle of mass `m` is thrown horizontally from the top of a tower and anoher particle of mass `2m` is thrown vertically upward. The acceleration of centre of mass is

A

g

B

`(9g)/3`

C

`(2g)/3`

D

`g/2`

Text Solution

Verified by Experts

The correct Answer is:
A
`a_(cm) = (m_(1)a_(1)+m_(2)a_(2))/(m_(1)+m_(2))`
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NARAYNA-SYSTEM OF PARTICLES AND ROTATIONAL MOTION -EXERCISE - I(H.W)
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  11. If vec A= 3i + j +2k and vec B = 2i - 2j +4k and theta is the angle be...

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  14. A particle is moving with uniform speed 0.5 m//s along a circle of rad...

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  18. Initial angular velocity of a wheel is 2 rad//s .It rotates with a co...

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  19. A stationary wheel starts rotating about its own axis at constant angu...

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