Question

Two objects one of mass 4 times as massive as the other are approaching each other under their mutual gravitational attraction. when the separation between the objects is 100km, the acceleration of the heavier object is a.1m/s2 b.2m/s2 c.8m/s2 d.4m/s2
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Answer 1

Answer:

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Explanation:

ɢɨʋɛռ

Mass of the first body ×4=mass of the second body.

Let the acceleration of the body be a

As per law gravitation,

F=

r

2

GMm

a At r=100km, 1=

m

F

=

(100)

2

GM

=>G=1⋅

M

(100)

2

At r=25cm,

M

F

=

(25)

2

Gm

=> 4 1

25

100

(

2

=4m/s

2

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Answer 2

Hope its helpful....✔️