Susan and Jake's truck gets stuck in the mud. They used a tree branch as a
lever toʻlift the truck out of the mud. They applied an effort force of 700N
to the branch and the back of the truck weighs 2100N. What is the
mechanical advantage of the tree branch lever?*

3

Explanation:

MA = OF(output force) / IF (input force)                                         2100 N / 700 N = 3

OF=2100N

IF=700N

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.