posted by Sasha .
I just need help with part c. I know stopping takes longer but we have to explain why.
A student stands on a bathroom scale in an elevator at rest on the 64th floor of a building. The scale reads 849 N.
(a) As the elevator moves up, the scale reading increases to 912 N. Find the acceleration of the elevator.
(b) As the elevator approaches the 74th floor, the scale reading drops to 782 N. What is the acceleration of the elevator?
(c) Using your results from parts a and b, select which change in velocity, starting or stopping, takes the longer time.