A uniform rod AB, 100cm long and of mass 2kg is supported horizontally at points P and Q, 40cm and 65cm respectively from A. A mass of 1kg is hung at a point 25cm from A. If the rod is in equilibrium, calculate the reactions at the support(Take g= 10m/s²).?

Answer 1

use P and Q individually as the center of rotation

sum the moments to find the reaction forces