Question

Calculate the force of gravitation due to a child of mass 25 kg on his fat mother of mass 75 kg if the distance between their centres is 1m from each other. Given G = (20/3) × 10 _11 Nm 2 kg​

Answer 1

Explanation:

. If the mass of each body is doubled and distance between them is halved then the force between them will be :

MEDIUM

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ANSWER

Given

F

g

=

R

2

G×m

1

×m

1

Doubring both masses and halving distance.

F

g

′

=G×

(

2

R

)

2

2m

1

×2m

2

∴ F

g

′

=

4

1

×R

2

G×4×m

1

×m

2

∴ F

g

′

=

R

2

G×m

1

×m

1

×16

∴ F

g

′

=16 F

g