- #1
IAmPat
- 29
- 0
Homework Statement
A tennis player strikes a tennis ball of mass 56.7g when it is at the top of the toss, accelerating it to 68.0m/s in a distance of 0.0250 m. What is the average force the player exerts on the ball? Ignore any other forces acting on the ball.
Homework Equations
Net-Force = mass * acceleration
Acceleration = Change in velocity / Change in time
The Attempt at a Solution
Change in velocity = 68
Change in time = 0.0250 seconds
Acceleration = 68/0.025 = 2,720 m/s/s
mass = 56.7g -> 0.0567kg
Net-Force = (0.0567)(2,720) = 154.224 N
I'm able to check if my answer is correct after submitting it so I know whether or not it is correct. I thought this would be the only way to do it, but perhaps I am not finding the average force? Any help is appreciated