Question

On which principle does a beam balance work ?? What is FPS unit ?​

Answer 1

Answer:

Explanation:

A beam balance works on the principle of moments according to which in equilibrium, the anti-clockwise moment due to the weight of an object on left pan of the beam is equal to the clockwise moment due to the standard weights on the right pan of the beam.

The foot–pound–second system or FPS system is a system of units built on three fundamental units: the foot for length, the (avoirdupois) pound for either mass or force (see below), and the second for time.

Answer 2

I don't know I am in 4 class