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Notes: Forces Big “G” and little “g”

Notes: Forces Big “G” and little “g”. Newton’s Law of Universal Gravity F g , the force of attraction between two objects is directly proportional to the products of the masses of the objects, and inversely proportional to square of the distances between their centers of mass

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Notes: Forces Big “G” and little “g”

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  1. Notes: ForcesBig “G” and little “g” Newton’s Law of Universal Gravity Fg, the force of attraction between two objects is directly proportional to the products of the masses of the objects, and inversely proportional to square of the distances between their centers of mass Fg = G m1m2 r2 G = 6.67 x 10-11Nm2 kg2 m1 m2 F1 F2 r

  2. m1 m2 F1 F2 r Fg = G m1m2 r2 Force of gravity (Fg) between large masses (objects) is greater than between small masses (objects). Force of gravity (Fg) decreases as distance between objects increases.

  3. Acceleration due to the force of gravity All falling objects on earth, in the absence of air resistance, accelerate at the rate of 9.8 m/s2 g = 2Dd = 9.8 m/s2 t2 Vf = gDt Vf = √2gDd Dd = 1gt2 2 air resistance (or drag)the force exerted by air on a moving object terminal velocity the largest velocity that is reached by a falling object when air resistance balances the pull of gravity, an object stops accelerating and its speed remains constant

  4. Big “G”, Little “g”, and “Fg” “G” is a constant value used to calculate the force of gravity between two objects. G = 6.67 x 10-11Nm2 kg2 “g” is the acceleration due to the force of gravity pulling on an object “Fg” is the actual pull, or force, of gravity on an object. It is also the weight of an object. “Pulling ‘g’s’ ” in an aircraft, or amusement park ride, is actually the measure of how many times your weight “Fg “ your body is experiencing.

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