Question

Identify the variation as direct, inverse, joint or combined. f= kw1w2/sA: directB: inverseC: jointD: combined

Answer 1

D: combined

Explanation:

Given the equation of variation:

`f=(kw_1w_2)/(s)`

We see that f varies jointly with w1 and w2; f also varies inversely with s.

A situation where one variable depends on two (or more) other variables, and varies directly with some of them and varies inversely with others is referred to as a Combined Variation.

The variation is combined.

Option D is correct.