The ratio of the weight of a man in a stationary lift and when it is moving downwards

The Ratio Of The Weight Of A Man In A Physics QuestionThe Ratio Of The Weight Of A Man In A Physics Question

The ratio of the weight of a man in a stationary lift and when it is moving downwards with uniform acceleration a is 3:2,then the value of a is

Options

(a) 3/2 g
(b) g/3
(c) g
(d) 2/3g

Correct Answer:

g/3

Explanation:

Weight when stationary = mg

Weight when moving downwards = m(g-a)

3/2 = mg/m(g-a)
3g – 3a = 2g
⇒ a = g/3

AddThis Website Tools
admin:

Related Questions

  1. In radioactive element, β-rays are emitted from
  2. A block of mass m is moving on a wedge with the acceleration aᵒ
  3. In a transistor the collector current is always less than the emitter current
  4. In R-L-C series circuit, the potential differences across each element is 20 V.
  5. An alternating electric field, of frequency v, is applied across the dees (radius = R)