EVERYDAY SCIENCE

Detailed explanation-1: -Newton’s law of gravitation, statement that any particle of matter in the universe attracts any other with a force varying directly as the product of the masses and inversely as the square of the distance between them.

Detailed explanation-2: -The idea that objects only change their velocity due to a force is encapsulated in Newton’s first law. Newton’s first law: An object at rest remains at rest, or if in motion, remains in motion at a constant velocity unless acted on by a net external force.

Detailed explanation-3: -Newton’s law of universal gravitation states that the force of gravity affects everything with mass in the universe. Newton’s law also states that the strength of gravity between any two objects depends on the masses of the objects and the distance between them.

Detailed explanation-4: -In fact, just about all objects on Earth have at least two forces acting on them at all times. One force is gravity, which pulls objects down toward the center of Earth. The other force is an upward force that may be provided by the ground or other surface. Friction is another common force on Earth’s surface.