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A mass of lkg attached to one end of a s...

A mass of lkg attached to one end of a string is first lifted up with acceleration `4.9m//s^2` and then lowered with same acceleration. What is the ratio of tension in string in two cases

A

1:3

B

3:1

C

1:2

D

2:1

Text Solution

Verified by Experts

The correct Answer is:
B
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