<prompt> Which of the following factor determines extent of wound caused by a bullet?SizeWeightVelocityShape  <response>: A bullets ability to wound is directly related to its kinetic energy Emv22 at the moment of impact. Because kinetic energy increases in direct propoion to weight mass of the missile and the square of its velocity, a bullet travelling at twice the speed of a second bullet of equal weight and similar shape, possesses four times much energy or wounding power. Ref: The essentials of forensic medicine and toxicology by Dr K S Narayan Reddy, 27th edition, Page 189. 