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+a0) upward
- (a-a0) upward
- (a+a0) downward
- (a-a0) downward
- (a+a0) upward
- (a-a0) upward
- (a+a0) downward
- (a-a0) downward
Asked by निकोदिमुस
9th August 2017,
8:55 PM
Answered by Expert
Answer:
1) The lift is accelerating downward with acceleration 'a'.
2) The ball is thrown upwards with an acceleration 'a0' upwards. But, a0 < a. So, the net acceleration is a - a0.
3) 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.
Answered by Expert
10th August 2017,
11:01 AM
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