Concept explainers
Assume that the earth is a solid sphere of uniform density with mass M and radius
where G is the gravitational constant and
(a) Show that
(b) Suppose a hole is drilled through the earth along a diameter. Show that if a particle of mass m is dropped from rest at the surface, into the hole, then the distance
where
(c) Conclude from part (b) that the particle undergoes simple harmonic motion. Find the period T.
(d) With what speed does the particle pass through the center of the earth?
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Chapter 17 Solutions
Calculus (MindTap Course List)
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