Find the force to stop a 5kg ball at 20m/s instantly. Dont take in account resistance.
kinetic energy = 0.5*mass*velocity^2
Energy = force * distance
force = energy / distance
The Attempt at a Solution
0.5 * 5kg * 20m/s^2 = 1000J
1000J / 0 = ??????
As seen it does not work if you want to find the force to counter it exactly...
What am I doing wrong?