Middle School

The fulcrum of a first-class lever divides its 9.0 m arm into two sections—a 6.0 m arm and a 3.0 m arm. You place a rock weighing 98.1 N on the 3.0 m end. How much force do you need to exert on the 6.0 m end to balance the lever?

A) 49 N
B) 200 N
C) 880 N
D) 1,800 N