Question

A boy of mass 30kg is sitting at a distance of 2m from the middle of a see saw . where should a boy of mass 40kg sit , so as to balance the see saw ?​

Answer 1

let the see saw of 4m whole

then the boy is at one end

the ratio should be like

x/2 = 40 /30

x /2 = 3/4

x = 6/4

x = 3/2

x = 1.5 m from middle