A seesaw consist of uniform bar 4m long and of mass 5kg. A boy of weight 42N at end A of the seesaw while another weight of 38N sits at the end B. At what point must the seesaw be pivoted if is to be balanced (take acceleration due to gravity= 10m/s^2)
The seesaw can be balanced when the moments on both sides of the pivot point are equal. The moment is calculated as the force multiplied b...