Recent content by Gumbosplat

How would I be able to estimate that? I'm not able to actually measure that, and I don't know how to calculate that anyway. Could I also base force calculations off of the distance traveled into the ground after collision? I'd estimate that to be around 0.0001m on a hardwood floor, just a guess.

Posting new calculations for 0.2m d=0.2m a=9.8m/s/s m=0.0567kg t=√2d/a t=√0.4m/9.8m/s/s t=√0.04s/s t=0.2s v=at v=9.8m/s/s*0.2s v=1.96m/s KE=1/2 m v^2 KE=0.028kg*3.841m^2/s^2 KE=0.108J

I'm going to calculate KE, and then force from that

Is there an equation I should be using? I'm really at a loss as to what to even begin with.

I wonder, could I use F=(mv)/t of this?

Hm, I don't think I can measure that accurately...

Measuring the bounce height is part of my experiment, and I have recorded those heights. Do you mean you can't find the force without factoring in the total time? I thought that you could just use F=m(Δv/Δt) for just the way down, would this be inaccurate?

Thank you so much! Now I have to kick myself all day for forgetting the velocity formula, you really just made my day, though. Are you sure that the air resistance would be significant at this small of a height?

Homework Statement Ok, so I'm doing this science fair project on tennis ball bounce hieght, and I have to find the force that it hits the ground with. I'm trying to do this mathematically, because I can't record the time accurately in the actual experiment. The mass of the ball is 0.0567kg...