Question

A boy throws a ball upwards with an initial speed of 18.4m/s.
(a) What is the direction of acceleration during the upward motion of the ball?
(b) What are the velocity and acceleration of the ball at the highest point of its motion?

Answer 1

Answer:

Explanation:

(a) Since, the ball is moving under the effect of gravity, the direction of acceleration due to gravity is always vertically downwards.

(b) At the highest point, the velocity of the ball becomes zero and acceleration is equal to the acceleration due to gravity =9.8 ms-2 in vertically downward direction.

Answer 2

Answer:

Answer: Explanation: (a) Since, the ballis moving under the effect of gravity, the direction of acceleration due to gravity is always vertically downwards