A midi-cholorian moves in a horizontal circle at constant speed. It takes T seconds to complete one trip around the circle. It moves with centripetal acceleration of A. Which of the following gives an expression for the radius, R, of the circular path? A. T^2A/4π^2
B. TA/2π
C. 4π^2/T^2A
D. T/A
E. 2πr/A

When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great.d) about 10 times as great.