posted by Pat on .
"if u could do this physics problem thatd be super.
A coach is hitting pop flies to the outfielders. If the baseball (m = 145 g) stays in contact with the bat for 0.04 s and leaves the bat with a speed of 50 m/s, what is the average force acting on the ball?"
Write down all the given then this problem might not be hard.
m of ball = 145 kg
t = 0.04 s
v = 50 m/s
Force(avg) = mass*acceleration(avg)
Also, acceleration(avg) = (delta)velocity/(delta)time, where delta represents change.
Now, solve for these variables:
acceleration(avg) = (50-0)/(.04-0) = 1250 m/s^2. Now calculate avg force:
Force(avg) = (.0145)(1250) = 18.125 N