A certain lever system is only 30% efficient. The following changes are considered:

Question

A certain lever system is only 30% efficient. The following changes are considered:

change 1: Use a stiffer lever to reduce energy lost bending the lever.
change 2: Make a longer lever that will require less force.
Which change would make the lever more efficient?

I think it would make the lever Change 2: MORE EFFICIENT BECAUSE IT WOULD MAKE IT EASIER TO LIFT.

Answer 1

Yes, you are correct. Change 2 (using a longer lever) would make the lever more efficient because it would require less force to lift the object, reducing the energy loss and increasing overall efficiency.