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A bullet travels down a rifle barrel with a velocity that depends on time: v =...

A bullet travels down a rifle barrel with a velocity that depends on time:

v = 2*105 t - 6*107 t2

The acceleration is not constant.

What is the acceleration as a function of time?

What is the position as a fuction of time?

How long does it take for the bullet to leave the barrel in seconds?

Find the speed at which the bullet leaves the barrel in meters/second.

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