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A block of mass m kg is kept on a weighi...

A block of mass m kg is kept on a weighing machine in an elevator. If the elevator is retarding upward by a `ms^(-2)`, the reading of weighing machine is

A

mg

B

`m(g-a)`

C

`m(1-(1)/(g))`

D

`m(g+a)`

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Knowledge Check

  • The person o( mass 50 kg slands on a weighing scale on a lift. If the lift is ascending upwards with a uniform acceleration of 9ms^(-2) , what would be the reading of the weighting scale? ("Take g"=10ms^(-2))

    A
    50kg
    B
    60kg
    C
    96kg
    D
    176kg

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