Question #b5ee5

1 Answer
Eddie
Oct 3, 2016

see below

Explanation:

Because it is in Newtonian Equilibrium, we can say that:

#(m v^2)/ r = (GMm)/(r^2)#

... thus balancing centrifugal and centripetal forces

#implies v = sqrt ( (GM)/(r) )#, which is "speed"

In terms of aceleration:

#a_r = - (v^2)/ r = - (GMm)/(r^2)#,

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