To lift a load to the roof, you apply 21 N of force to a pulley. The pulley applies 21 N of force to the load. What is the mechanical advantage of the pulley?
A.0
B.1
C.40
D.21
4 answers
B. 1.
b. 1.
how do i show my work
It is B I past my test with it!
1 answer