The separation distance between two 1.0 kg masses is changed. how is the mutual gravitational force affected in each case?

First case : Gravitational force = 1.5625

Second case : Gravitational force = 0.04

Explanation:

a) The separation distance is four-fifths the original distance.

  Distance decreases, so force increases.  i .e., F2 ÷ F1

so ( )²

    =

    = 1.5625

b) The separation distance is 5 times the original distance.  i.e. F2 ÷ F1

Distance increases, so force decreases.

so ²

 =

 = 0.04

hello there!

your answer is a “generator”

a generator does not create energy but instead it transforms it.

it’s basically a motor working in reverse.

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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