Question

A ball is thrown straight up in the air. For which situation are both the instantaneous velocity and the acceleration zero?

• A.
  On the way up
• B.
  At the top of its flight path
• C.
  On the way down
• D.
  None of the above

Answer 1

The correct option is D

None of the above
When the ball is thrown vertically upwards, it moves under acceleration due to gravity (acting towards the earth).



At the top of its path, its velocity becomes zero but still acceleration
(a = –g) acts in downwards direction. Then it starts moving in the downwards direction with increasing velocity till it reaches the ground.

Hence, the correct answer is option (d).