- #1
x3lifelove
- 10
- 0
A roller coaster trolley and its passengers have a mass 840 Kg. The trolly comes over the top of the first hill with a speed of .200 m/s. The hill is 85.0 m above the ground. The trolley goes down the first hill and up the crest of the second hill 64.0 m above ground. Ignore the effects of frictional forces. What is the kinetic energy of the trolly at the top of the second hill?
Help please, I keep getting the answer wrong ):
Help please, I keep getting the answer wrong ):