The idea is to divide the output force by the input force.
It is 16.
The answer is mechanical advantage, not efficiency!
A lever is a very useful tool that lets us exchange weight for distance. For example (theoretically) if you had to move a 200 pound sack into a car, but couldn't lift it, you could divide it into 8 parts, each being 25 pounds, and move each one individually into the car. It would be easy, however it would take more distance (lifting into the car 8 times instead of 1)
mechanical advantage _ l l -
1
If the machine were ideal ( 100% effiency) the output force would be 300 N In practice you might get 250 - 270.
Efficiency of a machine or mechanical advantage
Mechanical advantage the resistance force. Mechanical advantage is equal output force divided by input force.
2,000/125=16
mechanical advantage= output force over input force
Mechanical Advantage
Mechanical Advantage which is the output force divided by the input force.
A mechanical advantage occurs when a tool such as a hammer is used that increases the amount of force being applied without increasing the effort of the person using the tool. To increase mechanical advantage, you could use a bigger hammer to increase output force.
mechanical advantage= output force over input force times 100
mechanical advantage
MA=output force/input force
mechanical advantage!
Mechanical advantage.