What Modifications Can Boost Ramp Efficiency Without Height Adjustment?

[iRamie]

Homework Statement

We have a lab in which there is a ramp with one end on the floor and the other end is on top of a few textbooks. Therefore, it has a slope, and an object is lifted using the ramp.
What can we do to this set-up to increase the efficiency, OTHER THAN INCREASING THE HEIGHT.

Homework Equations

Efficiency = Eout / Ein
Eout = mgh
Ein = Work = FD

The Attempt at a Solution

 

[AlexChandler]

If the kinetic energy is unchanged during the process, the Eout equals the Ein. So the efficiency is 1 according to your definition for it. Can you get better efficiency than 1?

 

[iRamie]

It has a slope? The efficiency can't be 100%? Some work has to be lost right?

 

[AlexChandler]

Well if there is friction and air resistance, perhaps you could do something to decrease these factors... perhaps make the surface more smooth and the object more aerodynamic. Try to think for yourself what might help to increase efficiency. I think you could have come to these same conclusions.