simple momentum and force problem

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simple momentum and force problem

Physics
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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an object moves in the x direction with a momentum of 8 kg * m/s. a force with Fx = -9N and Fy = 3N acts on the object for 0.15 seconds. what is the magnitude of the velocity after the 0.15 seconds have passed? my thought is to use the momentum update principle (final momentum = initial momentum + Fnet*deltaT) but I'm not sure how to set things up
So mass of the object is not given?
no

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Other answers:

you need the mass to get velocity
@IrishBoy123 made a typo, it wants the magnitude of the momentum after 0.15 seconds. would I still need the mass for that?
nope, you're now good to go! i would do something like \[\vec p_o = <8,0>\] \[\vec F = \frac{d \vec p}{dt} \implies \Delta \vec p = \vec F .\Delta t\] \[\therefore \vec p = <8,0> + 0.15<-9,3>\] \[|\vec p| = \sqrt{p_x^2 + p_y^2}\]
that's what I was thinking, too, I just had my numbers set up wrong I got the answer, thanks for your help ^_^

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