The opposing force from the floor, by the way, is also why people get sore feet after a long practice session and bruised from hitting the floor after a hard dig. If the floor didn’t “push back,” athletes wouldn’t be able to leave the ground. The force exerted by their feet downwards is countered by an opposing, upwards force exerted by the floor. The law of opposing forces can be seen when volleyball players leap off the floor. The faster the arm swing, the more force is exerted on a spiked volleyball at the moment of contact. Heavier athletes need more time to get into position, or more leg strength to get there as quickly. Newton’s laws of motion seem simple for today’s generation, but in the past three centuries, these laws of motion have been revolutionary for humankind. Smaller athletes are more agile on the court because their lower mass accelerates and decelerates more quickly, which is particularly critical on defense. Newton’s three laws of motion explain the motion between massive bodies and their way of interacting with each other.
The law of acceleration comes into play every time a volleyball player moves on the court.
In an example of a moving object, a spiked volleyball moves in a fairly straight line downwards unless deflected by the force of the net, receiver’s forearms, blocker’s hands or floor. This law represents a certain symmetry in nature: forces always occur in pairs, and one body cannot exert a force on another. Newtons third law: If an object A exerts a force on object B, then object B must exert a force of equal magnitude and opposite direction back on object A. It will either fall straight down due to the force of gravity, or sail across the net from the force of a hand striking it. This remarkable fact is a consequence of Newtons third law. In the same way, a spacecraft far from any source of gravity would need no thrust to. Once you set it in motion, the object continues to move at a constant speed until it strikes another object. Example 2: When you turn off a table fan, the blades continue to move for some time even without electricity. This is due to the inertia of motion whereby the car begins to stop while the body inside is still in a state of motion.
A stationary object remains at rest until you apply a force to it. Example 1: When a car stops suddenly, the passengers still feel forward motion. A nice example of the law of inertia can be seen in a volleyball at the highest arc of a server’s toss, that moment when the ball is nearly motionless. Newton’s First Law Describes How an Object Moves When No Force Is Acting on It.
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