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1. The problem statement, all variables and given/known data

let say we have an object moving with a non constant acceleration and has a non constant mass where we have a(t) as any function like t^3 or (7t^2-3)/2t and m(t) also is a function of time and of course position changes with respect to time I know the formula for work is W= [tex]\int m*a dx[/tex] but in this case its m(t) and a(t) and x is also a function of t so how would the integral work?

2. Relevant equations

F=m*a

W=integral (ma)dx

3. The attempt at a solution

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# Homework Help: Work by a non constant force

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