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The weight of a body at earth's surface ...

The weight of a body at earth's surface is W. At a depth half way to the centre of earth it will weight

A

40m

B

80m

C

100m

D

120m

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The correct Answer is:
D
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AAKASH SERIES-MOTION IN A STRAIGHT LINE -PRACTICE EXERCISE
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  11. A body is thrown vertically up reaches a maximum height of 78.4 m. Aft...

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  14. A stone is thrown vertically up at 20 m/s from a tower 80 m height. Th...

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  16. A balloon rises with uniform velocity of 10 ms^(-1). When the balloon ...

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  17. The variation of velocity of a particle moving along a straight line i...

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  19. Acceleration-times graph of a body is shown. The corresponding veloc...

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