The force acting on a object ( 10 kg ) as function of time is given by :(adsbygoogle = window.adsbygoogle || []).push({});

F (t) = [ (-20t + 90)i - 60j + ( 10t + 40)k ] Newton

At time t=0 seconds , the speed of the object is given by :

V = [-14i + 26j + 32k ] m/s

question a )

use the impulse-momentum theorem for deciding the objects speed at t=4 ?

question B )

What is the average force acting on the object in the time interval t=0 -> t=4 ?

I can probably solve this task , but when I must use the theorem , I kind of get stuck

No examples of the use of this have I found online , not in textbook either

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# Homework Help: Force given by a vector

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