# Selina Solutions Class 9 Physics Solutions for Exercise 3E in Chapter 3 - Chapter 3 Laws Of Motion

Question 3 Exercise 3E

Write an expression for the gravitational force of attraction between two bodies of masses m1 and m2 separated by a distance r.

The gravitational force ‘F’ between two bodies having masses m1 and m2, separated by a distance r is given by:

\mathrm{F}=\mathrm{G}\frac{m_1m_2}{r^2}

where G is the constant of proportionality known as the gravitational constant.

Video transcript
hello everyone welcome to later learning i'm good preet your science tutor today's question is write an expression for the gravitational force of attraction between two bodies of masses m1 and m2 separated by a distance r so you have to write an expression for the gravitational force we know that gravitational force is directly proportional to the product of the masses that is m1 into m2 and f is direct inversely proportional to the square of the distance of separation that is r square so from this we can say f is equals to g m one m two upon r square okay here g is the universal gravitational constant okay so this is the required expression for the gravitational force of attraction for more such videos please subscribe leader learning and for any doubts drop a comment thank you
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