# The velocity of an object with a mass of #3 kg# is given by #v(t)= sin 2 t + cos 4 t #. What is the impulse applied to the object at #t= pi /4 #?

##### 1 Answer

May 18, 2018

#### Answer:

There is no impulse at that time.

#### Explanation:

The acceleration,

Evaluating that at time

Since the acceleration is zero, the force applied to this object is zero.

Now impulse. Impulse is

So "impulse" would not really apply to this situation even if the force had not calculated out to be zero.

I hope this helps,

Steve