Mechanics: Understand Work and Kinetic Energy

WHAT IS KINETIC ENERGY?

Kinetic energy is an energy that occurs when a body is in movement.

Difference between POTENTIAL ENERGY and KINETIC ENERGY?

Graphic explanation:

What is WORK Done by Forces?

Definition:

The force is described as the energy or force applied to an object. So, basically, it is the force that acts upon an object(body) to cause a displacement.

Calculate the work done to the object is equal to:
W = Force * displacement * cosine(angle).

Work = F * d * cos(θ)

EXPLANATION:

Let assume that the object is moving from position a to b.

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