A mathematical model for the position x(t) of a body moving rectilinearly on the x-axis in an

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A mathematical model for the position x(t) of a body moving rectilinearly on the x-axis in an inverse-square force field is given by

d?x di?


Suppose that at t = 0 the body starts from rest from the position x = x0, x0 > 0. Show that the velocity of the body at time t is given by v2 = 2k2(1/x – 1/x0).

Use the last expression and a CAS to carry out the integration to express time t in terms of x.

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