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Technically speaking, there is no realistic way to "defy" gravity. Gravity is a universal and inevitable force that acts upon all objects at all times at an equal rate. However, there are ways to change the conditions under which you are influenced by gravity in order to minimize its effects. In the case of an athlete, it is a matter of man (or woman) vs. gravity, with no technological aide. The only controllable variables are speed, strength, and position. Common sense would tell you that the more momentum and force you have going into a jump, the farther or higher you are going to go. Also, the more area faced with resistance, the longer it will take to touch back down. Of course, in a human jump, we're speaking in terms of miliseconds... Basically, the answer is no, no living or nonliving thing withing the confines of the Earth can truly defy the great and inevitable force of gravity.
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What is a zero gravity chair?
There is gravity EVERYWHERE in the universe. There's no such thing as "zero gravity". But we only FEEL gravity when we are resisting its influence. On Earth, we feel the weight of gravity because we stand up, we walk around, we don't just fall to the ground. When you jump off a ladder, or jump out of an airplane, you "feel weightless" as long as you are falling. When you hit the ground, or when you open your parachute, the feeling of weight returns because you are resisting the fall. In space, the astronauts don't "feel gravity" because they, and the whole space station, are freely falling through space. That the space station doesn't actually fall to earth is a trick of physics; in orbit, you are moving so quickly to the side that by the time you fall, you're someplace else. The space station is continually falling AROUND the Earth. In the water, the buoyant force of the water keeps you from sinking to the bottom, but you don't actually notice the resistance to gravity. So astronauts train for weightlessness in deep swimming pools. You are still under the influence of gravity - but the buoyancy counteracts it, so you feel weightlessness. This is one of the reasons why scuba diving is so enjoyable.
How long can a man hang in mid air on a vertical leap or long jump?
It's very hard for a human to raise his center of gravity more than 1 meter ( Michael Jordan could jump about 1.1m and Larry Bird could jump vertically about 0.8 m ). Once at the maximum height, the time required to fall back is 1= (1/2)gT^2 or T = SQRT (2/g)= SQRT (2/9.8) = 0.45 sec. The initial velocity to get up to 1m is V^2= 2gX1 or V = SQRT(2g) = 4.4 m/sec. Assume the average upward speed during the rise is 4.4/2 = 2.2m/s, the time required to rise is 1m/2.2m = 0.45 sec or the same time as for the fallback. Thus, the total time in the air is 0.90 sec. The appearance of the "hang time" being longer is a consequence of the player raising his arm with the ball as he falls so that the ball appears to be at the same height longer than his center-of-gravity. For zero time. When you look at the center of gravity of the person, there is not much difference between a person and a ball tossed into the air. The "hang-time" in ballet, basketball or gymnastics is an illusion AND a demonstration of strong muscles and great skill.
How many brothers and sisters did Annie Jump Cannon have?
Annie Jump Cannon had 2 sisters.
What are good trampoline science fair projects?
See what or who can jump higher,an animal or a human. Your hypothesis: "I think a human will jump higher,"or,"I think the animal will jump higher,".You could also test it out if you have a trampoline and an animal that will possibly let you set it on a trampoline ;^).
Howdoes gravity affect people?
Yes, gravity affects all things in the universe that have mass (and even some things that don't, like light.) So sadly, as much fun as it would be to fly, your body is not exempt from gravity.
Do figure skaters defy gravity?
No, they do not. The jump and leap, but gravity never ceases acting upon them.
How do gymnasts defy gravity?
They don't. They jump higher and further because they are stronger and better at doing so, not because they can resist gravity.
What force pulls a snowboard toward the ground during a jump?
Gravity!
Who was the first athelete in Singapore to take part in the Olympics?
Lloyd Valberg who placed 14th in men's high jump at the 1948 Games in London.
Gravity is an example of what?
an example of gravity is sky diving. the gravity is pulling down the the ground after you jump out of the plane.
How might you not jump without gravity?
Without gravity, you could jump all right... but you wouldn't fall back down. For example, if you jump on a small asteroid (with hardly any gravity), you would propel yourself into space and wouldn't come back.
When volleyball players jump in the air what the primary force acting to make them land back on the ground is?
gravity
Why is it better to jump on the moon?
because there is no gravity
Would you be able to jump on the moon?
you would be able to jump on the moon. the moon's gravity is 1/6 of earths gravity so there is a bit of gravit but not alot so you will be able to jump abit
Why a person standing on the moon can jump higher than a person standing on earth?
It's simple Gravity you see...When you jump on earth the gravity pulls you down however if you jump on the moon there is no gravity meaning you'll just float off and eventually land.
What are the physics of parkour?
In Parkour, GRAVITY is a challenge, or an obstacle to be overcome.It would have been easy to wall-run without gravity, and chances of getting hurt is also less.It would have been easy to do an Anti-Gravity KONG VAULT.
What makes a person jump and return to the ground?
Gravity
