The illustration shows a rollercoaster add indicates four different positions the car might be at as it moves along the track. If friction weren’t a factor and no energy was lost, at which point in the rollercoaster journey is its potential energy the greatest? Choices:

A: W
B: X
C: Y
D: Z

Please help!

each  column  of the  table  is called a group. elements in a group share similar properties. groups are  read  from  top  to  bottom. metal. metalloid. nonmetal. solid. liquid. gas. fe. hg. o.  2. 3. 4. 5. 6. 7. 8. 9.  2. beryllium. 9.012. 4.  sodium. 22.990.  11. 3.  magnesium. 24.305.  12.  potassium. 39.098.  19. 4.  calcium. 40.078.  20. i guess  i  

the answer is 0.8m.

by: nicholas

it's c (engineer's do their work with mechanical stuff not on any living being)