# Acceleration

### A stone falls towards the earth but the opposite is not observed-why?

##### Gravitation

A stone falls towards the earth – why? A stone falls back on the ground. But the earth doesn’t seem to move towards it. Why? As said by this law of universal gravitation every object in this universe is attracting every other object towards it. This force of gravitational attraction between any two objects in

### Free fall, Acceleration due to Gravity and Kinetic Energy

##### Force Gravitation Motion Work, Energy, Power

Weight of any object is a force applied on the object by earth’s gravitational pull towards the center of the earth. We know the equation of a force = mass * acceleration. i.e.      F=m*a…….(1) When we talk of weight force then the equation becomes like this: Weight(W)= mass * acceleration due to gravity

### what is force in Physics

##### Force

What is Force in physics? What is force in physics? Force is a push or pull. If you are pushing a box, you are certainly applying a force. If you are pulling a rope you are again applying a force. As a force is applied on a body, it results into an acceleration of the