Question

Alok and his father are sitting at a distance of 5 meter on a seesaw. His father is at the distance of 2 meter from the fulcrum and Slok weighs 20 kg. If they are balancing the seesaw, find the weight of his father.​

Answer 1

30kg

Step-by-step explanation:

Distance between Alok and father = 5m

Father's distance from fulcrum = 2m

Solak's weight = 20kg

Unknown:

Weight of the father = ?

Solution:

This problem entail the balancing of forces around a fulcrum.

In this problem;

workdone by father = workdone by Alok

( mass x distance) father = (mass x distance) Alok

distance of Alok from the fulcrum = 3m

Input the parameters and solve;

mass of father x 2 = 20 x 3

mass of father = 30kg

The weight of the father is 30kg