Question

if you throw a 0.25 kilogram ball with a force of 20 newtons what's the answer what's the acceleration of ball

Answer 1

First calculate the the force per kilogram(0.25 / 20 or 80N) so 80m/s^2 

Answer 2

I'll give this a shot. I know someone else has most likely answered this by the time I'm done answering, but it is good to have more than one answer after all.
In physics, force is equal to mass multiplied to acceleration. We are given the info that the mass is 0.25 kg and the force is 20 N. 

F = ma 
20 N = 0.25 kg * a 
20 kg*m/s^2 = 0.25 kg * a 
a = 20/0.25 
a = 80 m/s^2

So the acceleration of the ball is 80 m/s^2.