Yes, I take three readings at each distance and then take an average of them.
I only have result for one fan speed.
Yes, I also think that it will approach zero as an asymptote as the distance is increased. But at certain distance the wind blown out by the fan cannot put the car into...
For the experiment I am investigating on the effect of the position of hitting the billiard ball on the time it takes for the ball to obtain pure rolling.
The detailed theory can be found here: http://www.real-world-physics-problems.com/physics-of-billiards.html
Basically if I hit the sweetspot...
I have done an experiment recently and found that there seems to exist a linear relationship (the R-squared value closest to one compared to quadratic fit, although they are pretty close) between the distance from the fan and the wind force.
At distance zero there is a certain magnitude the...
1) Are there any ways to control the impulse in an collision in a lab condition? I.e. if I set an object connected to a spring and try to hit a ball using the object, are there any ways to control the impulse of the collision?
2) How to detect the change from slipping to pure rolling...