# The velocity of an object with a mass of #4 kg# is given by #v(t)= sin 3 t + cos 7 t #. What is the impulse applied to the object at #t= (5pi)/12 #?

##### 1 Answer

Jun 4, 2016

#### Answer:

It is

#### Explanation:

In classical mechanics and with constant mass, the instantaneous impulse is defined as the momentum

In your case

and this has to be evaluated when

then

we have that

So we have