As an object's speed increases, kinetic energy also increases. Kinetic energy is expressed as: KE = (mv~2)/2 Where: KE = kinetic energy m = mass v - velocity This equation tells us that the kinetic energy depends on an object's mass (m) and its speed (v). For example, a car traveling at 20 km/hr. will deliver a greater force and do more work as it hits a tree (or any solid object) than a bicycle moving at the same speed, because the car has greater mass than the bike. Also, a car traveling at 100 km/hr. has four times as much kinetic energy as it does when traveling at 50 km/hr., again having more capability for greater force and work. Now let's apply this principle to a mechanical stamping press. Suppose two identical stamping presses are stamping at the same average slide velocity-for simplicity we'll assign an arbitrary value of 2-but one of the upper dies (M) has twice the mass of the other (m), or M = 2m.
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