# What is g in physics?

Asked by Betty Mcguire on September 08, 2021

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The universal gravitational constant (G)relates the magnitude of the gravitational attractive force between two bodies to their masses and the distance between them. Its value is extremely difficult to measure experimentally.

What happens to value of g as we go inside earth? In fact, the variation in g with distance follows an inverse square lawinverse square lawThe inverse square law proposed by Newton suggests that the force of gravity acting between any two objects is inversely proportional to the square of the separation distance between the object'scenters.

What is value of acceleration due to gravity at equator? Where g′ is the apparent value of acceleration due to gravity at the latitude due to the rotation of the earth and g is the true value of gravity at the latitude without considering the rotation of the earth. At poles, θ = 90°⇒ g’ = g. At the equator, θ = 0° ⇒ g′= g – Rω2. Important Conclusions on Acceleration due to Gravity :

What is the standard value of gravity at sea level? Established at the third General Conference on Weights and Measures in 1901, the standard gravity on Earth is 9.80665 meters per second squared, or 32.174 feet per second squared. However, standard gravity only applies to an object or body at sea level and geodetic latitude of 45 degrees.