A uniform 40-N board supports two children weighing 500 N and 350 N.If the support is at the center of the board and the 500-N child is 1.5 m from its center,how far is the 350-N child from the center?
A)1.1 m
B)1.5 m
C)2.1 m
D)2.7 m

Question

Quizplus · Accepted Answer

To balance the torques around the center, the torque from the 500-N child must equal the torque from the 350-N child. Using the formula torque = force x distance, we have 500 N x 1.5 m = 350 N x distance. Solving for distance gives distance = (500 N x 1.5 m) / 350 N = 2.1 m.

A Uniform 40-N Board Supports Two Children Weighing 500 N