i give medals!
You use a lever to lift a heavy tree branch. You apply a force of 30 N and the lever lifts the branch with a force of 120 N. What is the mechanical advantage of the lever?

A. 2
B. 4
C. 90
D. 0.25

Question

i give medals! 
You use a lever to lift a heavy tree branch. You apply a force of 30 N and the lever lifts the branch with a force of 120 N. What is the mechanical advantage of the lever?

 		A.	2
 		B.	4
 		C.	90
 		D.	0.25

anonymous · Answer

Mechanical advantage = multiplier of the force.

anonymous · Answer

if i multiply it's a number much higher then the options. 
is the equation load/effort? @RafaelNeumann

anonymous · Answer

You can apply a force of 30 newtons, but the effective mechanical force of the lever is 120N, so your force was multiplied by what factor? this is the mechanical advantage, as the question calls.

anonymous · Answer

so the answer would be 4, correct? @RafaelNeumann

anonymous · Answer

It seems correct.