Question

a student is riding the gravitron ride. it is turning at constant speed and the student is \stuck\ to the wall (she is at rest vertically). if the speed of the rotor increases how do the following forces that she experiences change?
normal force
friction force
a.) increases increases
b.) stays the same increases
c.) increases stays the same
d.) stays the same stays the same

Explanation:

Step1: Analyze Normal Force

The normal force provides centripetal force, given by $F_N = \frac{mv^2}{r}$. As speed $v$ increases, $F_N$ increases.

Step2: Analyze Friction Force

Vertical equilibrium: friction balances weight, $F_f = mg$. Mass $m$ and gravity $g$ are constant, so $F_f$ stays the same.

Answer:

c.) Increases, Stays the same