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Question

A body hangs from a spring balance supported from the from the ceiling of an elevator. If the elevator has an upward acceleration of 2.5m/s2 and the balance reads 50N,what is the true weight of the body?


A

(i) - p; (ii) - q; (iii) - r

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B

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C

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D

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Solution

The correct option is B


Reading in the spring balance is equal the tension in the spring=50N.As the elevator is accelarating in upward direction with 2.45 m/s2=g4.Tmg=ma50mg=m(g4)mg=40N


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