A body hangs from a spring balance supported from the roof of an elevator. (a) If the elevator has an upward acceleration of 2 m/s and balance reads 240 N, what is the true weight of the body.
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let the true weight be W.
Then 240-W=2m,where m is the mass of the body.
240=m(12)=>m=20kg.
Then 240-W=2m,where m is the mass of the body.
240=m(12)=>m=20kg.
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