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A boy of mass 50kg is standing at one en...

A boy of mass `50kg` is standing at one end of a boat of length `9m` and mass `400kg`. He runs to the other end. The distance through which the centre of mass of the boat boy system moves is

A

0

B

1 m

C

2 m

D

3m

Text Solution

Verified by Experts

The correct Answer is:
A
C.M does not change
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NARAYNA-SYSTEM OF PARTICLES AND ROTATIONAL MOTION -EXERCISE - I (C.W)
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  2. Two blocks A and B are joined together with a compressed spring . ...

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  3. A boy of mass 50kg is standing at one end of a boat of length 9m and m...

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  4. A dog weighing 5kg is standing on a flat boat so that it is 10 metres ...

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  5. Two bodies of different masses 2kg and 4kg are moving with velocities ...

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  6. If two particles of masses 3kg and 6kg which are at rest are separated...

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  7. Two bodies of 6kg and 4kg masses have their velocity 5hati - 2 hat j +...

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  8. The angular velocity of a rotating body is vec omega = 4 hat i + hat j...

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  9. The angle between the vectors (hat i + hat j + hat k) and ( hat i - ha...

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  10. The average angular velocity of the seconds hand of a watch if the sec...

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  11. The angular displacement of a particle is given by theta =t^3 + t^2 + ...

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  12. A body rotating with uniform angular acceleration covers 100 pi (radia...

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  13. A body rotates about a fixed axis with an angular acceleration of 3 ra...

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  14. A wheel starts from rest and acquires an angular velocity of 60 rad//...

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  15. Two moving particles P and Q are 10 apart at any point . Velocity o...

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  16. Two particle move in concentio cireles of radii r(1) and r(2) such tha...

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  17. A stationary wheel starts rotating about its own axis at uniform rate ...

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  18. A table fan , rotating at a speed of 2400 rpm is switched off and th...

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  19. If vec(F) = 2hat(i) - 3hat(j) N and vec(r ) = 3hat(i) + 2hat(j) m t...

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  20. A door 1.6 m wide requires a force of 1 N to be applied at the free an...

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