- #1
FallenApple
- 566
- 61
So here is a case where a ball is thrown on the floor with no friction.
Then is a case with friction
Now what I don't understand is how is the presence of friction going to make the normal force larger than usual. The friction is dependent on the normal force, not the other way around. And the normal force is dependent on the vertical impulse, which should the same as the previous case, since the CM of the ball has the same final vertical velocity before impact.