- #1

zoltrix

- 69

- 7

I have doubts about linear system

suppose that x is the input and y the output

if x1 then y1

if x2 then y2

the system is linear if

if (x1+x2) then (y1+y2)

now, take a mass m

you can write

f = m*a

however suppose that m changes with position

m = m(x)

above equations should be still valid

if(f1+f2) then (a1+a2)

is it a linear system ?