Question

How do I find potential energy of a car at the speed when collision occurs if the kinetic energy during the collision at 28 mph is 119,879.08 Joules?

Answer 1

There is more to this problem that you are not telling us. Did it slide down off a hill?

Answer 2

never specified.
"the car hits the deer before Ima can fully stop. Her speed is 28 mph when the collision occurs."

Answer 3

would it be 0 since the height doesn't change throughout?

Answer 4

If it did not use the engine but simply rolled down the hill then
m g h = (1/2) m v^2 = potential energy at top = kinetic energy at bottom = 119,879.08 Joules

Answer 5

thanks

Answer 6

I do not see any potential energy involved if it all happens on a flat road and there are no springs involved.