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A block of mass m kg is kept on a weighi...

A block of mass m kg is kept on a weighing machine in an elevator. If the elevator is retarding upward by a `ms^(-2)`, the reading of weighing machine is

A

mg

B

`m(g-a)`

C

`m(1-(1)/(g))`

D

`m(g+a)`

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AAKASH INSTITUTE ENGLISH-LAWS OF MOTION-EXERCISE
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  4. In the given arrangement all surfaces are smooth. What acceleration sh...

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  8. If trolley accelerates horizontally with acceleration a then bob is di...

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  9. Select correct statement regarding pseudo force :-

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  10. What force should be applied on the wedge so that block over it does n...

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  12. A particle is in uniform circular motion, then its velocity is perpend...

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