A puck sits on a rotating turntable rotating at a constant rate. If the puck is placed at a distance of $10$ cm from the center of the turntable, the puck flies off it if the rotati rate exceeds $.$ If instead the puck is placed $5$ cm from the center, the puck will fly off if the rotation rate exceeds

$0\mathrm{.}5re\frac{v}{sec}$

Selected Answer:

$(3)[$None Given$]$

Correct Answer:

c$.0\mathrm{.}7re\frac{v}{s}$