Question

Three of your friends are all sitting g on one end of a seesaw. The combined weight is 275 N. The length from the fulcrum to your friends is 2.5 m. The rest of the seesaw (from the fulcrum to you) is 4.5 m. What is the MA? What effort force is needed to lift your friends?

Answer 1

1.8

153 N

Step-by-step explanation:

MA = effort arm / load arm

MA = 4.5 / 2.5

MA = 1.8

MA = load force / effort force

1.8 = 275 N / F

F ≈ 153 N