The velocity of an object with a mass of #3 kg# is given by #v(t)= 3 t^2 - 5 t #. What is the impulse applied to the object at #t= 2 #?
The impulse is the average force x time
The average force id given by:
So the impulse =
So after 2s:
Assuming the impulse is over a period of 2s then