Gravity Question: Acceleration of Ball After Release?

[mybrohshi5]

Im just a little confused on a question dealing with gravity.

ok so if i am standing on a roof and i throw a ball downwards with an acceleration

the acceleration of the ball will be the acceleration i applied to it plus the acceleration of gravity correct?

or is it just the acceleration of gravity because after i let go of the ball there is not force being applied to it which will therefore cause it not to accelerate faster than gravity.

 

[berkeman]

Im just a little confused on a question dealing with gravity.

ok so if i am standing on a roof and i throw a ball downwards with an acceleration

the acceleration of the ball will be the acceleration i applied to it plus the acceleration of gravity correct?

or is it just the acceleration of gravity because after i let go of the ball there is not force being applied to it which will therefore cause it not to accelerate faster than gravity.

Your last statement is the correct one.

 

[Rasalhague]

You do accelerate the ball with your hand before you let go, giving it a certain velocity, but once it's left your hand, the only acceleration is due to gravity (ignoring slight resistance from the air).

 

[mybrohshi5]

Thanks :)

 

[thebiggerbang]

Yep. The force that you apply acts only for that instant of time when you interact with the body. After that, it's all up to gravity to do it's job ;)