Question

Define acceleration due to gravity. Explain how it varies with

i) altitude ii) latitude iii) depth.​

Answer 1

Answer:

altitude latitude depth

Answer 2

Answer:

The acceleration of a body in free fall under the influence of earth's gravity expressed as the rate of increase of velocity per unit of time and assigned the standard value of 980.665 centimeters per second per second. — called also g.

i) Altitude:The acceleration of an object changes with altitude. The change in gravitational acceleration with distance from the centre of Earth follows an inverse-square law. This means that gravitational acceleration is inversely proportional to the square of the distance from the centre of Earth.

ii) Latitude:As we move from the equator to the poles the distance of the point on the surface of the earth from the centre of the earth decreases. Hence the acceleration due to gravity increases. Variation in acceleration due to gravity Due to Latitude of the Place: ... Latitude of the equator is 0° and that of poles is 90°.

iii) Depth:If we go deeper, g decreases. Acceleration due to gravity also decreases with height and it also varies with latitude. The acceleration due to gravity decreases linearly with depth and at the center of earth it becomes zero which may seem to you counter-intuitive.

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