We fire a projectile with mass mp = 0.502 g from an air gun with mass M = 5 kg. The projectile impacts a cuboid with mass M = 182 g, which slides and stops at distance s = 4.8 cm. The friction coefficient between the cuboid and surface is f = 0.3. Determine the muzzle velocity of the projectile.
Assume that the velocity of the projectile at the moment of impact is the same as the muzzle velocity and that the cuboid is far enough to be unaffected by gases emitted from the air gun. The cuboid lies on a horizontal surface.