I have this problem that says a 3 kg object has a velocity of 7.00m/s(adsbygoogle = window.adsbygoogle || []).push({}); j(vertical, right?). Then a total of 12.0Ni(horizontal) acts on it for 5 seconds. What is the objects final velocity.

I know that the equation is Ft=mvf-mvi

I could just plug everything in, but what's bothering me is the fat that the mass has an vertical velocity and the force is acting on it horizontally. Am I reading this wrong or is this the case?

If so, how do I go avout finding what I need to plug in.

My work:

Ft=mvf-mvi

(12N)(5s)=(5)(vf)-(5)(7)... then solve for vf, but that seems too easy.

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# Homework Help: Impulse-Momentum Theorem Q.

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