3. A body above the surface of the earth is pulled toward the center of the earth with a force proportional to the reciprocal of the square of the distance of the body from the center. If the radius of the earth is 6375 km, find the velocity of the body as it strikes the surface of the earth if it falls from rest at a distance of four times the earth's radius measured from the center of the earth. What is the velocity if it falls from an infinite distance?
3. A body above the surface of the earth is pulled toward the center of the earth with a force proportional to the reciprocal of the square of the distance of the body from the center. If the radius of the earth is 6375 km, find the velocity of the body as it strikes the surface of the earth if it falls from rest at a distance of four times the earth's radius measured from the center of the earth. What is the velocity if it falls from an infinite distance?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:3. A body above the surface of the earth is pulled toward the center of the earth with a
force proportional to the reciprocal of the square of the distance of the body from the
center. If the radius of the earth is 6375 km, find the velocity of the body as it strikes
the surface of the earth if it falls from rest at a distance of four times the earth's radius
measured from the center of the earth. What is the velocity if it falls from an infinite
distance?
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