Class,

For homework do the following:

A 500 kg car on a rollerocaster track starts with a height of 6.5 m, and
a velocity of 8.8 m/s. Call this position A. It moves along the track to
position B, which has a height of 5 m, then to position C, which is at a
height of 3 m, then to position D, which is at 1 m, and finally to position
E which is on the ground level. Assuming this car loses no energy on the
way down, determine the PE, KE, and v at each position. Make a chart of
h, PE, KE, and v, and fill in the h column with the heights corresponding
to the positions for each letter.

If you have a graphing calculator, practice graphing PE vs. h (h on the
x-axis) and KE vs. v (v on the x-axis). Do regression fits of each of
these graphs. (One is linear, the other is quadratic)

On your paper make a graph of PE vs. h, and also KE vs. v. Make sure your
paper graph looks similar to the graphing calculator graph (if you have a
graphing calculator).

Ken Mukai