Here we are again...We have apully system as seen on page 1 of the attachment. I tried using the rectilinear motion equations, assuming a=constant, but the book's solution used the momentum-impulse equations and got a different answer.(adsbygoogle = window.adsbygoogle || []).push({});

I dont understand why my approach is incorrect... Thanks.

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# Momentum-impulse vs. rectilinear motion equations

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