A bullet is fired from a gun. The force on the bullet is given by \( F=600-2 \times 10^{5} t \) ...

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A bullet is fired from a gun. The force on the bullet is given by \( F=600-2 \times 10^{5} t \) where, \( F \) is in newton 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?
(a) \( 9 \mathrm{Ns} \)
(b) zero
(c) \( 1.8 \mathrm{Ns} \)
(d) \( 0.9 \mathrm{Ns} \)
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