Law of Acceleration: It is the second law of motion. According to this law, “A change in the acceleration of an object is directly proportional to the force producing it and inversely proportional to its mass.”If two unequal forces are applied to objects of equal mass, the object that has greater force applied will move faster. Conversely, if two equal forces are applied to objects of different masses, the lighter mass will travel at a faster speed. This law is also applied in various sports, for example, in hammer throw, the thrower, who is stronger (who has more force), will throw the 12 lbs hammer farther than a thrower who has less force or strength. A hammer thrower will find that more force is required to throw 16 lbs hammer than a 12 lbs hammer. If a baseball player hits a ball with the double force, the rate at which the ball will accelerate will be doubled. Football players can slow down, stop or reverse the direction of other players depending upon how much force they can apply and in which direction.