Question

A rifle man, who together with his rifle has a mass of 100 kg, stands on a smooth surface and fires 10 shots horizontally. Each bullet has a mass 10 g and a muzzle velocity of 800 ms⁻¹. The velocity which the rifle man attains after firing 10 shots is(a) 8 ms⁻¹ (b) 0.8 ms⁻¹(c) 0.08ms⁻¹ (d) – 0.8 ms⁻¹

Answer 1

see the attachment for the answer