The velocity of an object with a mass of #2 kg# is given by #v(t)= t^3 + 3 t^2 #. What is the impulse applied to the object at #t= 4 #?
Careful however Impulse is not
it is Force applied for a finite amount of time
in the limit
This is a straight implementation of the impulse equation i.e.
While the question is not clear I will make the assumption the Force was applied for 4 seconds causing the change in speed from