Question

Two objects of masses 20 kg and 60 kg are kept 4 m apart. The gravitational force between them is 'F' N. If a third object of 5 kg mass is placed at mid point between them, the net gravitational force on 5 kg mass due to former two objects will be

Answer 1

Answer:

The answer will be 375 N

Explanation:

According to the problem the mass of both the particles are 20 kg and 60 kg respectively

The gravitational force is mentioned as F Newton

Now the the mid object is placed at the point of 2 m

Therefore the gravitational force for mass 20 kg

f1 = -GmM/r^2 = 10 x 5 x 20 /4 = 250 N

Therefore the gravitational force for mass 10 kg

f2 = -GmM/r^2 = 10 x 5 x 10/4 = 125 N

Therefore the net force acting on the middle body is 250 +125 N or 375N