$2.$ Watch the video below. Terry breaks the record for tallest loop the loop $(19\mathrm{.}08$m$)$ that a car gets driven through in $2\mathrm{.}75$s$.$

a$)$ Find the average speed Terry was driving the car in the loop the loop. $(/1)$

b$)$ Find the normal force $($FN$)$ Terry experiences at the bottom of the loop the loop. Terry has a mass of $82$ kg$.(/1)$