How would doubling the height of an object change the object's potential energy?

a. the potential energy would increase by a factor of 4'
b. the potential energy would decrease by half
c. the potential energy would double.
d. the potential energy would not change

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.