A body hangs from a spring balance supp...

A body hangs from a spring balance supported from the roof of an elevator.
(a) If the elevator has an upward acceleration of `2.45 ms^(-2)` and the balance reads 50N, what is the true weight of the body?
(b) Under what circumstances will the balance read 30N?
(c) What will be the balance reading if the elevator, cable breaks?

True weight of the body is 40 N

True weight of the body is 60 N

Reading of balance if the elevator cable brakes is zero

Reading of balance it the elevator cable brakes is equal to the true weight of body

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A, C

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