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

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

A

`3 : 1`

B

`1 : 3`

C

`1 : 2`

D

`2 : 1`

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The correct Answer is:
A
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