Question

A 3.0 m uniform beam of mass 15 kg is pivoted 1.0 m from the end as shown below. A 35 kg child sits 0.60 m from the pivot. How far, d, from the pivot, must a 20 kg child sit in order for the beam to be in equilibrium?

Answer 1

not shown

the diagram/ visuals generally are important

there is also a draw functionality included w/i QC

Answer 2

balance the torques