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Why is acceleration due to gravity zero at the centre of the Earth?
Wiki User
∙ 11y ago
Acceleration due to the earth's gravity is zero at the center of the Earth because at that point the mass of the earth is equally distributed in all directions, so pulling equally in all directions for a net zero pull.
Simplistically, acceleration due to gravity decreases as distance from the center decreases. At the center the distance is zero, hence gravity is zero.
Wiki User
∙ 11y ago
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Is it possible for a body to have zero velocity and non-zero acceleration?
Answer:Yes, but only instantaneously.Consider a thrown ball moving directly upward. At the highest point of its trajectory, the instanataneous velocity (the velocity at that precise instant) is zero even while the acceleration due to gravity remains non zero.
How much gravitational force is the sun exerting on the earth?
The equatorial surface gravity is 9.780327 m/s2 or 0.99732 gThe Earth's gravity is around 380 ppm (pounds per mile).The force of gravity on Earth is equal to 9.8m/s2.
If a moving body has no acceleration does it mean that no force is acting on it?
It means there is no net force acting on it. A plane in the air has no acceleration, but it does have forces acting on it. Lift pushes it up Gravity pushes it down Air resistance opposes its movement Thrust provides movement When all these forces are equal the plane will move at a constant velocity. If one of these forces becomes greater the NET force on the plane will no longer be 0 and there will be an acceleration or deceleration. Hope that helps. Another example would be space as there are no opposing forces, if in space once a speed was that speed would be constant until you 1.) decelerated with a force in the opposite direction 2.) accelerated the speed past your current velocity in your current direction 3.) Get caught by some planets gravity and crash to you death (but then this question is the least of your problems)
Why their is a zero gravity in moon?
There is not zero gravity on the moon. Any object with mass has gravity (even a cotton ball). However, the more dense and more massive an object, the larger its gravitational pull. This is why, even though a tennis ball does have gravity, it has no effect in relation to the gravity of the Earth. The Moon has something like 1/6th of the Earth's, so if you weighed sixty pounds on Earth (eat something!) you would only weigh 10 on the Moon.
How much zero gravity is there in space?
Zero! that's why it is called zero gravity!
Is earth's gravity the same on the surface as it is in the center of the earth?
No. At the centre of the earth the acceleration due to gravity is ZERO
Value of accelaration due to gravity at the centre of the earth?
Zero.
Where can you exprece zero gravity?
when object fall free like at centre of earth that we call freefall with zero gravity.
How much is the gravity at the center of the earth and in which direction is it pulling?
The gravity at the centre of the Earth (due to the Eath's mass) is Zero.
Acceleration due to gravity is zero at?
At the center of earth or any other heavenly body.
What is the earth's gravity in terms of acceleration?
9.8 m/s2 ---------------------- Yes this is the average value of acceleration due to gravity near by the surface of the earth. As we go higher and higher level this g value decreases and becomes almost negligible. Same way as we go deeper and deeper the g value decreases and at the centre of the earth its value becomes zero.
Is it possible for the body to have zero velocity and non zero average acceleration?
Yes, satellite orbiting the Earth in a Geo-Stationary Orbit has 0 Velocity relative to a point on the Earth, BUT it experience the 'Pull' (acceleration) of Gravity, which prevents it from escaping its Orbit. The Gravity is LESS than that at the surface of the Earth, but not 0. The feeling of WEIGHTLESSNESS is not due to Zero Gravity, but due to the fact that Object is FALLING through its Orbit. A Person Falling "feels" Zero Gravity.
What is the distance from earths surface for zero gravity of an object?
For absolute zero gravitational attraction - Infinity. The gravitational attraction due to the Earth is also zero at the centre of the Earth.
Why do people float in zero gravity?
Gravity is a force that pulls you down to the centre of a planet. If it was zero gravity you wouldn't be pulled down. Earth is the only planet that has gravity that's why you "float" in space. I hope this has helped.
How is acceleration due to gravity be zero in a parachute?
At terminal velocity (constant velocity), the acceleration is zero, but prior to that, there is a downward acceleration.
What is the accelaration gravity of the center of Earth Surface?
At the earth's center, the acceleration/force of gravity is theoretically zero.(At least the force of gravity between the earth and an object at its center. There's still the gravitational forcesbetween the object and everything else ... the sun, moon, stars, etc.)
What is the numerical value in a meters per second squared of the acceleration of an object experiencing a true free fall?
The acceleration of an object by gravity depends on where the object is. The AVERAGE acceleration of gravity on the Earth is 9.81 m/s². Effective gravity on the Earth's surface varies by around 0.7%, from 9.7639 m/s2 on the Nevado Huascarán mountain in Peru to 9.8337 m/s2 at the surface of the Arctic Ocean.Of course if you drop an object on other bodies - such as the moon or Mars, the acceleration is MUCH different that it is on Earth.
