Question

The modern boxing glove was introduced in 1743. Before then, gloves weren’t used. Let's assume that the average boxer's arm has a mass of 7 kilograms and reaches 10 m/s before hitting an opponent's face. If upon Collision the face was compressed about three centimeters, what was the force on the opponent's face. (use energy/work analysis) Now with the use of boxing gloves and opponents face compresses 8 centimeters during a below. Solve for the force on the face.