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A 30-gram bullet leaves a gun barrel with a speed of 230 m/s. (a) What work is done on the bullet while it is in the gun barrel? (b) If the gun is 0.60m long, what is the average force on the bullet?

2 answers

work = 1/2 m v^2
Vf^2=1/2 a * distance, where acceleration a= force/mass, solve for force.

a)W = KE = 1/2 mv^2
b)F = W/d

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