Does acceleration due to gravity increase below the earth's surface and acceleration due to gravity of the earth is less at the equator than at the poles?
Does acceleration due to gravity increase below Earth's surface?
Yes, the acceleration due to gravity increases slightly below Earth's surface. This is because the Earth is not a perfect sphere, but rather an oblate spheroid, meaning that it is slightly wider at the equator than at the poles. As a result, the Earth's mass is not evenly distributed, and there is slightly more mass below the equator than at the poles. This means that the gravitational pull on an object is slightly stronger below the equator than at the poles.
In addition, the Earth is rotating, and this rotation creates a centrifugal force that acts outward on objects at the equator. This centrifugal force partially counteracts the gravitational force, so the net force on an object at the equator is slightly less than the force on an object at the poles. As a result, the acceleration due to gravity is slightly less at the equator than at the poles.
How much does the acceleration due to gravity change below Earth's surface?
The change in the acceleration due to gravity below Earth's surface is very small. At a depth of 1 kilometer, the acceleration due to gravity is only about 0.002% higher than at the surface. At a depth of 10 kilometers, the acceleration due to gravity is only about 0.02% higher than at the surface.
How much does the acceleration due to gravity vary from equator to pole?
The acceleration due to gravity is about 0.5% lower at the equator than at the poles. This means that an object that weighs 100 kilograms at the poles would weigh about 99.5 kilograms at the equator.
Why does the acceleration due to gravity vary with latitude?
The variation in the acceleration due to gravity with latitude is due to two factors: the Earth's oblate shape and the Earth's rotation.
The Earth's oblate shape means that the Earth's radius is slightly greater at the equator than at the poles. This means that an object at the equator is farther away from the center of the Earth than an object at the poles. The force of gravity weakens with distance, so an object at the equator experiences a weaker gravitational pull than an object at the poles.
The Earth's rotation creates a centrifugal force that acts outward on objects at the equator. This centrifugal force partially counteracts the gravitational force, so the net force on an object at the equator is slightly less than the force on an object at the poles. As a result, the acceleration due to gravity is slightly less at the equator than at the poles.
Yes, so as we go below the earth's surface, the gravitational acceleration decreases. When R becomes less (i.e. when depth increases) this value also decreases. Hence, acceleration due to gravity decreases with increase in depth. Acceleration due to gravity is represented by g. The standard value of g on the surface of the earth at sea level is 9.8 m/s2. When the body goes up, the distance between distance between the body and the centre of the earth increases and, as a result, the acceleration due to gravity decreases. As depth increases acceleration due to gravity decreases and at the center as d=R, acceleration due gravity becomes zero. Acceleration due to gravity decreases linearly with increase in depth. Acceleration from gravity is always constant and downward, but the direction and magnitude of velocity change. At the highest point in its trajectory, the ball has zero velocity, and the magnitude of velocity increases again as the ball falls back toward the earth. Gravitation at the surface varies slightly from that average value, with the highest acceleration at the surface being at the North Pole and the lowest atop a mountain near the equator. Inside the Earth, the gravitational acceleration increases slightly with increasing depth until one reaches the core-mantle boundary. Acceleration due to gravity is not a universal constant. The acceleration of a freely falling body on the surface of the earth is ' acceleration due to gravity '. Although its value is constant at a given place, it would change from place to place. Acceleration due to gravity is zero at the centre of the earth. The value of g is least at the equator and maximum at the poles. It means the value of acceleration due to gravity increases as we go from the equator to the poles.The equator is moving quickly as the earth's spins, so it has a lot of centrifugal force. In contrast, the poles are not spinning at all, so they have zero centrifugal force. Since centrifugal force points outwards from the center of rotation, it tends to cancel out a little bit of earth's gravity. The length from the poles to the center of the earth is smaller than the distance from the equator to the earth's center. Therefore the acceleration due to gravity is more significant at the poles than at the equator and as the acceleration due to gravity is inversely proportional to the distance from the centre of the earth, the distance is less on poles, the acceleration due to gravity (g) is more. At latitudes nearer the Equator, the outward centrifugal force produced by Earth's rotation is larger than at polar latitudes. This counteracts the Earth's gravity to a small degree – up to a maximum of 0.3% at the Equator – and reduces the apparent downward acceleration of falling objects.
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