Question

When a ball is tossed in the air and reaches the top of its arc, which of the following quantities are zero? Choose one or more: A. the acceleration of the ball B. the speed of the ball C. the velocity of the ball D. the force on the ball

Answer 1

Answer:

option 'b' and 'c'

Explanation:

when we throw ball in upward direction.

acceleration on the body will never be zero because there will always be acceleration due to gravity i.e. 'g' will be acting on it.

and force  of 'mg' will also be acting on the body, where m is the mass of the body.

so,

at the top the parameters which will be zero will be velocity and speed.

at the top most point the ball will change it's direction for that velocity will have to be zero at that point.