- #1
Ltpenguin
- 15
- 0
Homework Statement
A snowboarder goes down a ramp when initially at rest. The Total mechanical energy on top of the hill is 980 J and 400J at the bottom of the hill. Calculate efficiency of the ramp.
Homework Equations
Efficency = (Power out) over (Power in)
The Attempt at a Solution
I believe the %59 is correct because at the bottom of the hill the snowboarder had 400 J of energy left ( waste energy) so that is not calculated in efficiency you use 980-400 = 580J is the useful energy out. is this correct?
or is it this
Thank you for your help :)