A particle of mass 2kg is subject to a drag force from the air: F(v)= -0.5v^2. The initial displacement of the mass is zero and the initial speed is 1ms. Find an expression for x(t) and hence work out x(4)(adsbygoogle = window.adsbygoogle || []).push({});

Ive got this question in one of my text books and cant seem to get it to work, could anybody help me with the answer at all?

I have tried a few things, and i know i have to integrate, but i am getting a bit confused :s. If somebody could show me how its done, then i can look back at it and understand all the steps, as there is other questions like this i plan to eventually answer.

Thanks Alot :D

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# Help with question mass/displacement

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