ITCM 202 Lab 7 1 Find the single resultant of the four paral

ITCM 202 Lab 7 1. Find the single resultant of the four parallel forces shown below.

Solution

Weight of the beam = 30*(1+2) = 90 n acts from mid-point of the beam.

Net downward force = 100 + 90 - 150 = 40 N

Hence, magnitude of single resultant force = 40 N, acting downwards