Do you remember seeing Newton's 2nd Law ?
F = m A
Force = (mass) x (acceleration)
The question tells you the mass and the acceleration.
All YOU have to do is take the numbers and pluggum
into Newton's 2nd law.
F = m A
= (0.75 kg) (25 m/s²)
= (0.75 x 25) kg-m/s²
= 18.75 Newtons .
Notice that this is the ball's acceleration only as long as the force is
acting on it. If it's a hit, then as soon as the ball leaves the bat, it stops accelerating ... it just sails away at whatever speed it had when the bat
stopped pushing it.
