A bullet is fired from a gun. The force ...

A bullet is fired from a gun. The force on the bullet is given by `F=600-2xx10^(5)` t, where F is in newtons and t in seconds. The force on the bullet becomes zero as soon as it leaves the barrel. What is the average impulse imparted to the bullet?

9 Ns

Zero

1.8 Ns

0.9 Ns

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