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The change in momentum of an object is equal to the Question 4 options: Force acting on it times its velocity. impulse acting on it. Change in velocity of the object.

User Shamell
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1 Answer

3 votes

Answer:

impulse acting on it

Step-by-step explanation:

The impulse is defined as the product between the force applied to an object (F) and the time interval during which the force is applied (
\Delta t):


I=F\Delta t

We can prove that this is equal to the change in momentum of the object. In fact, change in momentum is given by:


\Delta p = m \Delta v

where m is the mass and
\Delta v is the change in velocity. Multiplying and dividing by
\Delta t, we get


\Delta p = m (\Delta v)/(\Delta t) \Delta t

and since
(\Delta v)/(\Delta t) is equal to the acceleration, a, we have


\Delta p = ma \Delta t

And since the product (ma) is equal to the force, we have


\Delta p = F \Delta t

which corresponds to the impulse.

User Paystey
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