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.​

Answer 1

Answer:

(a) 5.336 10-12

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  and d = 10 m to get force F

 

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

Answer 2

Answer:

Gravitational Force of attraction is $5.339*10^{-12}$

Explanation:

Gravitational force of attraction between two bodies of mass m and M separated by a distance d is calculated as:

$F = G\frac{m*M}{d^{2} }$

where G = $6.674*10^{-11} N m^{2} kg^{-2}$ which is also known as gravitational constant.

Here, given m = 2 kg, M = 4 kg and d = 10 m

So,  $F = 6.674*10^{-11} \frac{2 * 4}{10^{2} }$

           $= 6.674*10^{-11} \frac{8}{100}$

           $= 53.392*10^{-13}$

           $= 5.339*10^{-12}$

Thus, gravitational force of attraction F = $5.339*10^{-12} N$.