Work and Energy

As we know from the law of conservation of energy: energy is always conserved.

Work is the product of Force and the Distance over which it moves.

Imagine you are pushing a heavy box across the room. The further you move the more work you do!

If W is work, F the force acting at an angle θ and s the distance then.

Energy comes in many shapes.

The ones we look at over here are Kinetic Energy (KE) and Potential Energy (PE)

Here I is the Moment of Inertia of the object (a simple manner in which one can understand moment of inertia is to consider it to be similar to mass in Transitional KE)

where h is the height of the object

where k is the spring constant ( it gives how much a spring will stretch for a unit force) and L is the length of the spring.