Question $(1)$: You are doing an experiment in the lab $($shown in figure$).$ The ball starts from rest and rolls without slipping in the ramp, leaving the table horizontally.

$($i$)$ Calculate $V_f($final velocity$)$ and distance $"$d$"$ covered before hit the ground.

$($ii$)$ Number of revolutions during its fall and

$($iii$)$ If the ramp were to be made frictionless, what is the $\%$ change in speed $V_f$ and $d?($Assume that $I_{\text{b}\text{a}\text{l}\text{l}}=\frac{2}{5}m{r}^2)$

$(8+4)+5+(4+4)=25Pts$