A boy of mass 40 kg is standing in a lift,
which is moving downwards with an acceleration 9.8 $m / s^{2}$ . The apparent weight of
the boy is (Take $g = 9.8 m / s^{2}$ )

Q. A man of mass

m

is standing on weighing machine in an elevator accelerating upwards with an acceleration

a

. What will be the reading of weighing machine?

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a boy having a mass equal to 40 kilograms is standing in an elevator. The force felt by the feet of the boy will be greater when the elevator (g=9.8metres/sec2)

The correct option is D Accelerates upward with an acceleration equal to 4metres/sec2A boy having mass equal to 40kg is standing in an elevator.the force felt by the feet of the boy will greater when the elevator accelerates upwards with an acceleration equal to 4m/sec²

a boy having a mass equal to 40 kilograms is standing in an elevator. The force felt by the feet of the boy will be greater when the elevator
$(g = 9.8 m e t r e s / s e c^{2})$

The correct option is D Accelerates upward with an acceleration equal to $4 m e t r e s / s e c^{2}$
A boy having mass equal to 40kg is standing in an elevator.the force felt by the feet of the boy will greater when the elevator accelerates upwards with an acceleration equal to 4m/sec²