Question

two children weighing 200N and 220N are sitting one side of a see-saw at a distance of 2m and 2.5 m respectively from the pivot.where the other side of the sea-saw for the see-saw to be rotational equilibrium.​

Answer 1

Explanation:

Show that the relation R in the set A = {1, 2, 3, 4, 5} given by R = {(a, b) : |a – b| is even}, is an equivalence relation. Show that all the elements of {1, 3, 5} are related to each other and all the elements of {2, 4} are related to each other. But no element of {1, 3, 5} is related to any element of {2, 4}.