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 · Because we know the units for G are m³ / kgs², there must be a per unit volume component in this last formula and given that ρV = mass;The gravitational force F between two bodies of mass m1 and m2 at a distance R is In SI units, G has the value 667 × 10 11 Newtons kg 2 m 2 The direction of the force is in a straight line between the two bodies and is attractiveThe gal (symbol Gal), sometimes called galileo after Galileo Galilei, is a unit of acceleration used extensively in the science of gravimetry The gal is defined as 1 centimeter per second squared (1 cm/s 2) The milligal (mGal) and microgal (µGal) are respectively one thousandth and one millionth of a gal Gravitational Force In Physics Problems Dummies What is the si unit of gravitational constant g class 9