Question

give three applications of universal law of gravitation

Answer 1

1)tides caused due to moon and sun
2)Revolution of moon around earth.
3)Revolution of all planets around sun

Answer 2

Universal Law Of Gravitation – It is a common belief that an apple fell on Newton’s head and he realized that gravity exists. This isn’t completely incorrect. But Newton already knew about the existence of gravity. He was just trying to find out if the gravitational pull of the earth was what was holding the moon in its orbit.

He knew that the earth exerted a gravitational force on objects on earth; he just wanted to know if it extended far enough to influence the moon as well. Based on the falling apple, he already knew that the force exerted between bodies is dependent on the masses and that they influence each other (Newton’s second and third law of motion). Now he had to figure how the distance comes into play.

hope it helps