Part $(2)$ : Elastic Collision

b$)$ m$1!=$m$2$:$$

$1)$ Use the same link: https:$//$phet$.$colorado.edu$/$sims$/$html$/$collision$-$lab$/$latest$/$collision$-$lab$\_$en$.$html

$2)$ KEEP: Elasticity $100\%$ by dragging the blue triangle to the right

$3)$ Select: m$1=3$kg and m$2=1$kg

$4)$ Position $1(-1\mathrm{.}00$m$)$ and position $2(0\mathrm{.}00$m$)$

$5)$ Select: v$1$i$=1\mathrm{.}00$m$/$s and v$2$i$=0\mathrm{.}5$m$/$

$6)$ Click on Play, then after collision Pause. $7)$ Record the values of v$1$f and v$2$f$.$

$8)$ Calculate the values of Pi $,$ Pf $,$ Pf$/$Pi $,$ Ki $,$ Kf and Kf$/$Ki and record them into tables $2$ & $3.$

Do they all have the same Pf $/$ Pi$?$ explain.

Do they all have the same Kf$/$ Ki$?$ explain.