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A mass of 1 kg is suspended by a thread....

A mass of 1 kg is suspended by a thread. It is : (i) lifted up with an acceleration `4.9 m//s^(2)`, (ii) lowered with an acceleration `4.9 m//s^(2)`. The ratio of the tensions is :

A

`3:1`

B

`1:2`

C

`1:3`

D

`2:1`

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The correct Answer is:
A
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