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Two objects falling at the same time will fall with the same speed (assuming they both have similar shape and density)
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∙ 14y ago
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How is gravity different for objects that freely fall down and those thrown upwards?
The gravity acting on a rising object and that on a falling object are the same when these objects are at the same height. What is different is that a rising object is decelerating by the force of gravity and the falling object is accelerating.
Why don't all objects fall to the earth at the same velocity even though the accelration due to gravity always the same?
Because here on Earth, in the 'laboratory' where you must make all of your observations, everything you see falling must fall through air. The presence of air has a substantial effect on what you observe. If you could do the experiments without air, and have nothing but gravity affect your falling objects, you would see a feather and a truck fall with the same acceleration, reach the bottom at the same time, and hit the ground with the same speed.
Does gravity affect all objects in the same way?
Yes. The gravitational force between objects always depends only on their masses and the distance between them.
Does gravity exert the same force on all falling objects?
No. Gravity can be thought of as a force, but that is due to its effect on anything that possesses mass and/or energy. The effect that gravity exerts on any object is proportional to the amount of mass that is responsible for the presence of gravity and is also proportional to the amount of mass possessed by the object experiencing that gravitational presence. Therefore a gravitational field will exert a greater 'force' on a greater mass. However, mass also possesses the characteristic of inertia, which is a measure of resistance to any change to a state of motion - which effectively is a resistance to the effect of gravity. Inertia is also proportional to mass. What this means is that the greater the mass, the greater the pull it experiences due to gravity but at the same time, the greater is its resistance to that pull. Hence all falling objects experience the same acceleration due to the effect of gravity which is not the same as the force. All objects fall at the same rate. ========================= (Note: Gravity does not exert the same force on all objects, which is the reason why big people "weigh" more than smaller people do on the same planet.)
Does size effect speed?
If gravity is the only force on a falling object, then nothing about the object has any influence on its speed ... not its size, weight, color, shape, age, religion, or gender identification. Nothing. Two objects dropped from the same height at the same time hit bottom at the same time, and it doesn't matter what's different about them. That's Physics. The problem is that it's very hard to demonstrate this on Earth, because it's very hard to drop two objects where gravity is the only force on them. Falling objects are always falling through air, and the air has a big effect on how they behave. In air, their weight, size, and shape do affect how they fall ... a big part of the reason why all airplanes have very similar shapes.
How is gravity different for objects that freely fall down and those thrown upwards?
The gravity acting on a rising object and that on a falling object are the same when these objects are at the same height. What is different is that a rising object is decelerating by the force of gravity and the falling object is accelerating.
What is the effect of gravity - on the motion of falling objects - that are not inhibited by air resistance?
All objects, under these conditions, will accelerate at the same rate as they fall. (Note: Just the fact that you can call it a "falling" object is one of the effects of gravity.)
Why do thing fall at the same rate?
Because the gravity is the same. this does not explain why real heavy objects fall at the same rate as light ones since the more mass their is their is supposed to be more gravity.....also how does space/time warped space affect such things as the falling apple
How does weight affect an object when falling?
All Objects fall at the same rate in a vaacume, no matter the weight.
Why don't all objects fall to the earth at the same velocity even though the accelration due to gravity always the same?
Because here on Earth, in the 'laboratory' where you must make all of your observations, everything you see falling must fall through air. The presence of air has a substantial effect on what you observe. If you could do the experiments without air, and have nothing but gravity affect your falling objects, you would see a feather and a truck fall with the same acceleration, reach the bottom at the same time, and hit the ground with the same speed.
Does gravity affect all objects in the same way?
Yes. The gravitational force between objects always depends only on their masses and the distance between them.
Do some objects fall through the air at different rate than the others?
of course ! Yes, due to the effects of air resistance. All falling objects experience the same acceleration from gravity, however.
Does gravity exert the same force on all falling objects?
No. Gravity can be thought of as a force, but that is due to its effect on anything that possesses mass and/or energy. The effect that gravity exerts on any object is proportional to the amount of mass that is responsible for the presence of gravity and is also proportional to the amount of mass possessed by the object experiencing that gravitational presence. Therefore a gravitational field will exert a greater 'force' on a greater mass. However, mass also possesses the characteristic of inertia, which is a measure of resistance to any change to a state of motion - which effectively is a resistance to the effect of gravity. Inertia is also proportional to mass. What this means is that the greater the mass, the greater the pull it experiences due to gravity but at the same time, the greater is its resistance to that pull. Hence all falling objects experience the same acceleration due to the effect of gravity which is not the same as the force. All objects fall at the same rate. ========================= (Note: Gravity does not exert the same force on all objects, which is the reason why big people "weigh" more than smaller people do on the same planet.)
Does size effect speed?
If gravity is the only force on a falling object, then nothing about the object has any influence on its speed ... not its size, weight, color, shape, age, religion, or gender identification. Nothing. Two objects dropped from the same height at the same time hit bottom at the same time, and it doesn't matter what's different about them. That's Physics. The problem is that it's very hard to demonstrate this on Earth, because it's very hard to drop two objects where gravity is the only force on them. Falling objects are always falling through air, and the air has a big effect on how they behave. In air, their weight, size, and shape do affect how they fall ... a big part of the reason why all airplanes have very similar shapes.
Can an objects acceleration increase if you drop it from a higher altitude?
no, acceleration due to gravity is always the same, although air resistance might affect it
Does gravity effect astronauts in space shuttle?
Yes, it affects all objects in space (and all objects have a gravity of their own, that grows with size/"weight"). The reason why people talk about "zero gravity" in the space station and shuttle is because both the shuttle and the people inside it are affected by the same amount of gravity, so relatively they are falling at the same rate. Hence people inside the shuttle will not be moving towards the edge of the shuttle due to gravity. Take a football (the shuttle) and a tennis ball (some people) and hold them at the same distance from the ground and then release them (withuot adding any force, just let go). You will see that both objects will be affected by gravity, but relatively the tennis ball and the football are moving at the same speed. Now imagine that the tennis ball was inside the football and voilá, you have the shuttle scenario. Obviously the space shuttle is not falling directly towards the earth, it is actually "falling past it" - something that scientists call "orbit".
Is the speed and acceleration of which an object fall always the same?
Without air in the picture, gravity causes all falling objects to accelerate at the same rate, and grow their speed by the same amount after the same amount of time, regardless of their size, mass, or weight. We never see this in daily life, because anything we see falling is falling through air. The effect of air resistance on a falling object depends on the object's weight, size, shape, and speed, so its behavior in response to gravity alone is obscured.
