A 4.9 g bullet leaves the muzzle of a rifle with a speed of 332 m/s. What force (assumed constant) is exerted on the bullet while it is traveling down the 0.85 m long barrel of the rifle?

Answer 1

Force x distance = final kinetic energy of bullet
The distance is the barrel length. Solve for the Force

Answer 2

force=(mass)(acceleration)
what is the acceleration?

Answer 3

a is the rate of change of velocity.