A lift is moving down with acceleration a. A man in the lift drops a ball inside the lift. The acceleration…

A lift is moving down with acceleration a. A man in the lift drops a ball inside the lift. The acceleration of the ball as observed by the man in the lift and a man standing stationary on the ground are respectively
  1. g, g
  2. g - a, g - a
  3. g - a, g
  4. a, g

Solution

Man in the lift is in a non - inertial frame so we have to take into account the pseudo acceleration

Asked in: JEE Main 2002

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