B) A skilled jet fighter flies a stunt plane in a vertical circle of 1200 ft radius at constant speed of 140 mi h/1. Calculate the jet fighter's
acceleration at
(i) the highest point
(ii) the lowest point
Given
1 mi = 1609 m
1 ft = 0.3 m

Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)