Question

when we through a ball upward , what happens to its speed while it is going up? give reason​

Answer 1

Heya mate here is your answer:-

●When we through a ball up, it's speed decreases and at the highest point it's velocity is zero. When a ball is thrown up, acceleration due to gravity works downwards along with its weight, so it decreases.

Answer 2

When we throw a ball upwards, its speed retards gradually.

This is because the earth produces a gravitational force which brings down everything that goes up.

So when a ball is thrown upward the gravity applies force to bring it down which decreases its speed of going up.

And at a certain point, it stops and starts falling down.