Boxes are sliding down ramps as shown. Rank the situations shown below from greatest to least in term of velocity at the bottom of the incline.
10kg
A
10 m
1 kg
D
2 m
5 m
10 kg
B
5 m
1 kg
E
0.5 m
5 m
5 kg
C
0.5 m
10 m
15 kg
F
0.75 m
7.5 m
A. F, A=B, C, D, E
B. D, A=B, F, C=E
C. A=C, F, B=D=E