Question

If two bodies of masses 2 kg and 4 kg are separated by 10 m, the gravitational force of attraction between them is _____N.
(a) 5.336 10 -12
(b) 23.29 x 10 -13
(c) 9.324 x 10 -10
(d) 9.45 x 10 -15​

Answer 1

Answer:

The correct answer should be 5.339 X 10^-12 N

Explanation:

Gravitational force F between two objects of masses m1 and m2 that are separted by a distance d is given as

 

F = G × [ m1 m2 ] / d2

 

Where G = 6.674 × 10-11 N m2 kg-2  is universal gravitational constant .

 

Let us substitute m1 = 2 kg  and m2 = 4 kg  

d = 10 m to get force F

 

F = [ 6.674 × 10-11 × 2 × 4 ] / ( 10 × 10 ) = 5.339 × 10-12 N

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Answer 2

Answer:

20 N

Explanation:

2 DIVIDED BY 4 ANS 2

2 MULTIPLYE BY 10 ANS 20N