Two identical hockey pucks moving with Two identical hockey pucks moving with initial velocities $v_A$ and $v_B$ collide as shown. If the coefficient of

restitution is $e=0\mathrm{.}83,$ determine the velocity of each puck just after impact. Also calculate the

percentage loss $n$ of system kinetic energy.

Assume $v_A=7\mathrm{.}7\frac{m}{s},v_B=9\mathrm{.}3\frac{m}{s},=21.$

Answers:

$v_{A^{\text{'}}}=(i$

$1i+$

$j)\frac{m}{s}$

$v_B^{\text{'}}=($

$i+i$

$j)\frac{m}{s}$

$n=$

$i$

$\%$initial velocities vA and vB collide as shown. If the coefficient of restitution is e $=0\mathrm{.}83,$ determine the velocity of each puck just after impact. Also calculate the percentage loss n of system kinetic energy.

Assume vA $=7\mathrm{.}7$ m$/$s$,$ vB $=9\mathrm{.}3$ m$/$s$,\backslash$phi $=21\backslash$deg $.$