One substance can be separated from another through physical means is a property of every mixture.
Explanation:
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A > Is the correct answer :)
The impulse J is equal to the magnitude of the force applied to the cannonball times the time it is applied:

But the impulse is also equal to the change in momentum of the cannonball:

If we put the two equations together, we find

And since we know the magnitude of the average force and the time, we can calculate the change in momentum: