Question

1.) B1 has a mass of 90kg, and B2 has a mass of 60kg. They are both sitting on a seesaw. If B1 is seated
10m away from B2, how far should each be from the fulcrum of the seesaw?
a) Illustrate the diagram
b) Find the Fg of B2. FgB2 = m g
c) Find the Fg of B1. FgB1 = m g
d) Find B2 distance away from pivot point.
(m1) (r1) = (m2) (r2)
e) Find B1 distance away from pivot point. B1r = r2 - r1

Answer 1

$$m_1x_1=m_2x_2\\x_1+x_2=l\\90x_1=60(10-x_1)\to \\x_1=4\ m,x_2=10-6=6\ m$$