Physics

10 May, 10:07

The earth exerts a gravitational force of F (r) = 2.991016r2 (in Newtons) on an object with a mass of 75 kg, where r is the distance (in meters) from the center of the earth. Find the rate of change of force with respect to distance at the surface of the earth, assuming the radius of the earth is 6.77106 m.

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