A Ferris wheel with a radius of 9.9 m rotates at a constant rate, completing one revolution every 37 s.
Suppose the Ferris wheel begins to decelerate at the rate of 0.22 rad/s² when the passenger is at the top of the wheel.
Find the magnitude of the passenger's acceleration at that time.
Express your answer using two significant figures.
a = 2.2 m/s²
Find the direction of the passenger's acceleration at that time.
Express your answer using one decimal place.
$\phi = 90$ below the direction of motion.