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If the ball is falling, then work is being done.
Work is the product of (force) times (distance). The ball in the air has force acting on it, created by gravity, and known as the "weight" of the ball. If the ball is falling, then the work done on it by gravity is (its weight) multiplied by (the distance it falls).
If the ball is accelerating up, then something has to be providing force greater than its weight, in order to lift it against the force of gravity. It may be a muscle, a motor, an elevator, or some kind of air-foil taking energy out of wind. The work done on the ball is (the upward force on it) multiplied by (the distance it's lifted).
If the ball is moving only horizontally, and not the slightest bit up or down, then almost no work is being done, since there's no significant horizontal force acting on it. The ball does a small amount of work to move air as it moves through the atmosphere.
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∙ 12y ago
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How is work related to the conservation of mechanical energy?
Work equals the change in energy, in a closed system energy is not lost. So in a closed system any work done will be countered by an equal and opposite work. An example is throwing a ball up into the air and catching it again. The work done by you to accelerate it is equal and opposite to the work done by the earth.
Is air resistance in a ball being thrown?
Yes, air resistance is on everything where there is air.
Is work being done by an automobile operating for several minutes?
No work is being done by the automobile if it is standing still with the engine running since it isn't in motion (not counting any work done by the vibrations transmitted to the air and ground upon which it rests). The engine, on the other hand IS doing work while idling since the parts inside are moving and both having work done on them and, in turn, performing work on other parts.
A pitcher throws a 250g baseball to make it accelerate to 50 ms the instant it leaves his hand How much energy in Joules is expended how much work is done if that baseball travels 60 feet?
?
Who air pollution being done to?
everyone
A ball with a weight of 30 newtons is kicked 2 meters into the air what work has been done?
w=(f)(d) 30 times 2 =60
How is air pollution being done?
Greatest cause being man
Is the pitcher still doing work on the ball as it flies through the air?
no, because he has left the ball from his hand
What was the piece work done at home?
air condition
What creates pressure in a bicycle tire?
The pressure increases, and the molecules collide with the tire's inner surface.
Why does a ball bounce higher than others?
it will bounce higher if there is more air. ex. Flat basketball- being flat, the ball will just hit the floor and will be pressed inwards on the spot it landed pumped basketball- being full of air, the ball hits the ground and like a flat basketball is pressed inwards. but because there's air in it, the air will make the ball retain its shape and bounce.
Does it take time for the air get colder if you have replaced the air compressor?
If the work was done correctly, no.
