In the picture below, a 1000 kg car starts at point A and travels through points B, C, and D.
A-OJ
(a) Using the vertical position of point D as the reference level, calculate:
i. the car's gravitational potential energy at points A, B, C, and D
B-49033.25 J
A
C-98066.5 J
B
D-166713.05 J
15m
5 m
7m
D
ii. the car's change in gravitational potential energy in traveling from point A to B, A t
A to D.