physics

A 20. kg block is placed at the top of a 10. meter-long inclined plane. The block starts from rest and slides without friction down the length of the incline. (A diagram shows a height of 5.0 m, the 10. m length of incline/hypotenuse and the 20. kg block sliding on the hypotenuse.)

1) find the gravitational potential energy of the block at the TOP of the incline.

2) Find the kinetic energy of the block just as it reaches the bottom of the incline.

3) Sketch a graph of the GPE of the block as a function of its KE for the complete slide.

I need help setting up #1 and #2.

For #3, I know KE goes up as GPE goes down and vice versa. How do I show this on a graph?

Thank you for your help.

asked by Sejul

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