The horizontal component of the velocity of the ball is calculated by multiplying the speed by the cosine of the given angle.
x-component of speed = (31 m/s)(cos 35°)
= 25.39 m/s
Thus, the horizontal velocity component of the ball is 25.39 m/s.
I'm not completely sure, but I think it's 3.4 newtons. I hope you get it correct.
There is no apparatus for it. It is either use something like ruler and table and rub together or rub our hands, and friction force will be showed.
