Gravitational Field

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Gravitational field (intensity) is defined as:

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The Gravitational Field Intensity (or strength) at a point is the gravitational force experienced per unit mass placed at that point.
$\vec{g} = \frac{\vec{F}}{m_{test}}$
- It is a vector quantity.
- At Earth's surface, its magnitude is $g \approx 9.8 	ext{ m/s}^2$.
- For a point mass $M$: $g = \frac{GM}{r^2}$ directed towards the mass.

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Gravitational Field

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