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Question
A lift accelerated downward with acceleration ′a′. A man in the lift throws a ball upward with acceleration a0(a0<a). Then acceleration of ball observed by observer, which is on earth, is
A lift accelerated downward with acceleration ′a′. A man in the lift throws a ball upward with acceleration a0(a0<a). Then acceleration of ball observed by observer, which is on earth, is
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Solution
The correct option is D (a−a0)downward
The lift is accelerating downward with acceleration 'a'. The ball is thrown upwards with an acceleration a0 upwards. But, a0<a . So, the net acceleration is a−a0 As the man is stationary on Earth, he will see the ball coming down along with the lift. But, the acceleration of the ball will be a−a0. So, the correct answer is option 4.
The lift is accelerating downward with acceleration 'a'.
The ball is thrown upwards with an acceleration a0 upwards. But, a0<a . So, the net acceleration is a−a0
As the man is stationary on Earth, he will see the ball coming down along with the lift. But, the acceleration of the ball will be a−a0. So, the correct answer is option 4.
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