$5$ Multiple Choice $3\mathrm{.}33$ points

Puck B hias twice the mass of puck A$.$ Starting from rest, both pucks are pulled the same distance across a frictionless ice by strings with the same tension. Compare the final kinetic energies of pucks A and $B.$

$K_A=2K_B$

$K_A=\sqrt[\phantom{2}]{2}{K}_B$

$K_A=4K_B$

$K_A=K_B$

$K_A=\frac{K_B}{\sqrt[\phantom{2}]{2}}$