# 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 #?

##### 1 Answer

Feb 26, 2016

#### Answer:

Careful however Impulse is not

it is Force applied for a finite amount of time

in the limit

#### Explanation:

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