The force applied to the object is equal to 336N.
Why?
To solve the problem, we need to use the formula to calculate the mechanical advantage. We must remember that the mechanical advantage is a relationship between the force output and input.
For simple machines, we can calculate the mechanical advantage using the following formula:
[tex]MechanicalAdvantage=\frac{ForceOut}{ForceIn}[/tex]
We know that the mechanical advantage of the lever is equal to 2.8 while the applied force (input) is equal to 120N, so, calculating we have:
[tex]MechanicalAdvantage=\frac{ForceOut}{ForceIn}\\\\ForceOut=MechanicalAdvantage*ForceIn\\\\ForceOut=2.8*120N=336N[/tex]
Hence, we have that the force applied to the object is equal to 336N.
Have a nice day!
