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Questions  

If the elevator in the shown figure is moving upwards with constant acceleration 1 ms-2, the tension in the string connected to block A of mass 6kg would be         

(Take, g = 10 ms-2)

a
60 N
b
66 N
c
54 N
d
42 N

detailed solution

Correct option is B

The tension T in the string is  T=6(g+a)=6(10+1)=66 N

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