Question

A ball is thrown straight up, reaches a maximum height, then falls to its initial height. Make a statement about the direction of the velocity and acceleration as the ball is coming down?
a) Its velocity pounts downward and its acceleration points upward.b) both velocity and its acceleration point upwardc) its velocity points upward and its acceleration points downwardd) both its velocity and its acceleration points downward

Answer 1

Answer:

c) its velocity points upward and its acceleration points downward

Explanation:

when the ball is thrown upwards, its speed must go upwards and there is no force acting on it, so gravity must go downwards. option c is correct since the speed of the ball points up and the acceleration points down.

Answer 2

When the ball is coming down both its velocity and its acceleration points downward.

The velocity of ball decreases as the ball moves upwards and eventually becomes zero when the ball reaches maximum height. As the ball moves downwards, the velocity starts to increase and becomes maximum before the hits the ground

The direction of the ball's velocity is always directed upwards when the ball is moving upwards and downwards when the ball is moving downwards.

The acceleration of the ball is directed downwards and it is equal in magnitude to acceleration due to gravity.

Thus, we can conclude that when the ball is coming down both its velocity and its acceleration points downward.

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