Damien Walters is trying to run a loop the loop. The radius of the loop the loop is a bit smaller than Damien’s height. He is 5 ft 11 in = 1.8 m, so the radius is roughly 1.5 m.

(A) A person from the design team says that at the top, Damien’s speed must be 8.65 mph in order for him to be able to run the loop. Does she know her physics?