Question

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)

Answer 1

$velocity=\frac{distance}{time}\\\\ velocity*time=distance\\\\ time=\frac{distance}{velocity}\\\\ time=\frac{0,840m}{521\frac{m}{s}}=0,0016s\\\\ acceleration=\frac{velocity}{time}=\frac{521}{0,0016}=325625\frac{m}{s^2}$