Physics

Problem

A cannon of mass

500\,\text{kg}

placed on a horizontal surface fires a

10\,\text{kg}

shell horizontally with a muzzle speed of

300\,\text{m/s}

. The coefficient of kinetic friction between the cannon and the ground is

0.2

. How far will the cannon roll back before coming to rest? (Take

g = 9.8\,\text{m/s}^2

.) a)

\approx 12\,\text{m}

\approx 4.5\,\text{m}

\approx 9\,\text{m}

\approx 18\,\text{m}