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A uniform wire of length l is bent into ...

A uniform wire of length `l` is bent into the shape of 'V' as shown. The distance of its centre of mass from the vertex A is :-

A

`l//2`

B

`(lsqrt3)/(4)`

C

`(lsqrt3)/(8)`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C

`bar(x) = (l)/(4)cos30^(@) = (sqrt3l)/(8)`
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ALLEN -CENTRE OF MASS-EXERCISE-I
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  6. Considering a system having two masses m(1) and m(2) in which first m...

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  8. As shown, a big box of mass M is resting on a horziontal smooth florr....

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  9. The elastic collision between two bodies, A and B, can be cosidered us...

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  10. Two balls of masses m(1), m(2) and speeds v(1) and v(2) collide at rig...

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  11. Two paricle A and B initially at rest, move towards each other under m...

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  14. The figure shows the positions and velocity of two particle. If the pa...

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  16. A ball of mass 1 kg drops vertically on to the floor wit a speed of 25...

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  17. A particle of mass m is made to move with uniform speed v(0) along the...

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  18. Two balls of same mass are dropped from the same height h, on to the f...

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  19. An impulse vrc(I) changes the velocity of a particle from vec(v)(1) to...

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  20. A particle of mass 4m which is at rest explodes into masses m, m and 2...

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