- #1
pookisantoki
- 44
- 0
When a 53.4g tennis ball is served, it accelerates from rest to a speed of 40.5m/s. The impact with the racket gives the ball a constant acceleration over a distancce of 46.6cm. What is the mgnitude of the net force acting on the ball?
I converted the 53.5g into kg=.0535kg
I converted 46.6cm into m=.466
So we have the distance, mass, force but not the net force.
I figured out the time by
40.5=.466/x
x=.01150secs
and figured out the acceleration byt 40.5/.0111506=3519.8
and then net force=acceleration * mass
f=.0534kg*3519.8=187.9599
But it's wrong, what am I doing wrong?
I converted the 53.5g into kg=.0535kg
I converted 46.6cm into m=.466
So we have the distance, mass, force but not the net force.
I figured out the time by
40.5=.466/x
x=.01150secs
and figured out the acceleration byt 40.5/.0111506=3519.8
and then net force=acceleration * mass
f=.0534kg*3519.8=187.9599
But it's wrong, what am I doing wrong?