A person pushes a 12.3 kg box, initially at rest,
with a 34.6 N force at a 42.9° angle. Friction
pushes back against the box with a force
of 9.63 N. The box moves 7.20 m.
What is the final velocity of the box?
v = [?] m/s
Remember to indicate if the velocity
is positive (+) or negative (-).
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