Question

effort arm of a Lever is 120 cm long and the load are is 80cm long. what is the effort needed to raise the load of 60 N weight? what is the mechanical advantage of this Lever?​

Answer 1

Answer:

40 N

Explanation:

The lever obeys the concept of moment and torque. So this basically obeys the formula

        F1*d1=F2*d2  , where F represents force on the lever from either side  

                                                     and d is the distance from the pivot.

   1.2m(F1) = 60 N*(0.8m)

which gives us F1= 40 N