A person standing on a spring balance inside a stationary lift measures 60 kg . The weight of that person if the lift descends with uniform downward acceleration of 1 . 8 m s - 2 will be N . g = 10 m s - 2

Question

A person standing on a spring balance inside a stationary lift measures 60 kg . The weight of that person if the lift descends with uniform downward acceleration of 1 . 8 m s - 2 will be N . g = 10 m s - 2,

MARKS App · Accepted Answer

When lift is at rest N = m g ⇒ 60 × 10 = 600 N When lift moves with downward acceleration. In frame of lift pseudo force will be in upward direction. N ' = M g - a ⇒ 60 10 - 1 . 8 N ' ⇒ 492 N

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