Question $15$

$6\mathrm{.}67$ pts

You are riding a rollercoaster going around a vertical loop, on the inside of the loop. If the loop has a radius of $50$ meters, how fast must the cart be moving in order for you to feel three times as heavy at the top of the loop?

$44\mathrm{.}3\frac{m}{s}$

$38\mathrm{.}4$ m$/$s

$49\mathrm{.}5\frac{m}{s}$

$31\mathrm{.}3\frac{m}{s}$