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A person of mass 50 kg stands on a weighing scale on a lift. If the lift is descending with a downward acceleration of 9 ms-1 , what would be the reading of the weighing scale? ( Take g =10 ms-2 )

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since it is Non inertial frame so will have to apply pseudo force in opposite direction Reading of the weighing scale = Mg - Ma = M(g - a) = 50 ( 10 - 9) = 50 N Note:- the unit of acceleration is incorrect it should be m/sec2
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since it is Non inertial frame so will have to apply pseudo force in opposite direction

 

Reading of the weighing scale = Mg - Ma = M(g - a) = 50 ( 10 - 9) = 50 N

 

Note:- the unit of acceleration is incorrect it should be m/sec2

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