A certain lever system is only 30% efficient. What could make it more efficient?
Make a longer lever that will require less force.
Have more than one person help to lift the lever.
Use a stiffer lever to reduce energy lost bending the lever.***
Use it with a lighter load to make it easier.
Josh is wrong the answer is
B: use a stiffer lever to reduce energy lost bending the lever
Using a stiffer lever to reduce energy lost bending the lever can make the lever system more efficient.
To make a certain lever system more efficient, you would need to reduce the amount of energy lost in the system. In this case, one way to accomplish this is by using a stiffer lever that will minimize the energy lost due to bending.
When a lever system is not stiff enough, some of the work applied to the lever is absorbed by the flexing or bending of the lever itself. This energy loss reduces the overall efficiency of the system. By using a stiffer lever, you can minimize this energy loss and improve the overall efficiency of the system.