How do Newton's three laws relate to exercise?

Answer 1

Newton's 2nd law can be applied to many sports. If you are playing soccer the more force you exert during the kick the faster the acceleration which means that when the ball leaves your foot it is going faster allowing it to go further. (The bigger the force the greater the acceleration and therefore speed.) If you are playing baseball, the pitcher trains to increase his arm strength because the ball is a bit heavier than other balls so more force needs to be exerted on it to move it at 80-100 miles per hour. (Force is proportional to mass x acceleration, to accelerate a heavier object requires more force.) If you are playing tennis then you use a much heavier racket than if you are playing badminton. This is because tennis balls are much heavier than Badminton shuttlecocks. As the racket hits the ball/shuttle two things happen, the ball/shuttle accelerates and the head of the racket decelerates. You want a racket that is the right weight for the thing you are hitting. Too heavy and you can't accelerate it fast enough making you slow, too light and it just stops when you hit the ball/shuttle. (Force is proportional to mass x acceleration, to accelerate a heavier object requires more force, to decelerate (an every day term for acceleration in the opposite direction to movement) requires more force.) If you are a defender in football it is good to be heavy. When a fast light oponant hits you he will stop quicker if you are heavier than he is. (This is more easily explained using conservation of momentum but this is derived from Newton's 1st and 2nd laws.)

Answer 2

You know how funny the athletes move on each branch ?

Why they have to run or spin before throwing something... how they jump... how they aligned themselves in such a way to catch the ball.... why the swimmer flip that way whenthey swim back... etc ?

Those are all application of newton laws.

Answer 3

Newton's First LawThe first law of motion dictates that an object at rest will stay at rest, and an object in motion will stay in motion in the same direction unless another force acts upon it. A good example of this would be a treadmill. It's sitting still until a person gets on it and uses his body weight to start the belt in motion. Another example is the bicep curl. Starting a bicep curl with a 5 lb. weight is much easier than with a 25 lb. weight. Newton's Second LawNewton's second law of motion states that force equals mass times acceleration. Simply put, this law states that the force transmitted to an object equals the mass of the body acting on the object times the acceleration of the object as a result of that mass. It also dictates that the amount of change in motion is directly related to the amount of force being exerted on the object. A good example of this physical law when exercising is illustrated when you perform a bench press. The amount of weight you can lift is directly related to the amount of force exerted on the weights by your muscles. Doing reps faster -- with higher acceleration -- requires more force to be exerted. Newton's Third LawNewton's third law of motion is probably the most familiar, and states that for every action there is an equal and opposite reaction. This means that as you exert force to move weights, an equal amount of force is being applied to your body. An example of this would be the stair climber. As you exert force downward by stepping, your body is lifted from the ground by the resistance of the machine. If you stop stepping, you slowly sink.

Answer 4

no it did not