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A bullet leaves a rifle with a muzzle velocity of 521 m/s. While accelerating through the barrel of the rifle, the bullet moves a distance of 0.840 m. Determine the acceleration of the bullet (assume a uniform acceleration).
 Aug 11, 2013

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E_kin = E_pot
With:
E_kin = 0.5*m*v²
E_pot = m*a*x

=> 0.5*m*v² = m*a*x =
0.5*v² = a*x
=> a = 0.5*v²/x =
[input]0.5*(521[m/s])²/(0.840[m])[/input]
 Aug 11, 2013

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