A boy having a mass equal to 40 kilograms is standing in an eleva… - Vidyadip

MCQ

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 greatest when the elevator$(g = 9.8\,metres/{\sec ^2})$

A
Stands still
B
Moves downward at a constant velocity of $4$ metres/sec
C
Accelerates downward with an acceleration equal to $4\,metres/{\sec ^2}$
✓
Accelerates upward with an acceleration equal to $4\,metres/{\sec ^2}$

✓

Answer

Correct option: D.

Accelerates upward with an acceleration equal to $4\,metres/{\sec ^2}$

d
(d) 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 $4 \mathrm{m} / \mathrm{sec}^{2}$

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