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# Mechanics

## Projectile motion equations formulas and examples

What is a projectile? A body thrown at a some angle θ above or below the horizontal such that (0 < θ < π/2) and moves freely under the action of gravity is called projectile. What is projectile motion? “Projectile motion is two dimensional motion under constant acceleration.”or When a body is thrown vertically upward then it follows a curved path such a motion of ...

## 5 kinematic equations of motion with derivations and formulas

Kinematic equations Kinematics is the branch of mechanics dealing with the motion of bodies without reference to mass or force.There are three basic equations of motion for bodies moving with uniform acceleration.These equations relate initial velocity,final velocity,acceleration,time and distance covered by a moving body.To simplify the derivation of these equations,we assume that the motion is along a straight line.Hence,we consider ...

## acceleration in physics examples formula and problems

What is acceleration in physics? “Acceleration is defined as the rate of change of velocity of a body.”In many cases the velocity of a body changes  due to a change either in its magnitude or direction or both.The change in the velocity of a body causes acceleration in it.If an object is moving at a constant speed but changes its ...

## Velocity:definition,formula,examples in physics

What is velocity in physics? Velocity is defined as:”The rate of displacement of a body is called its velocity.”The velocity tells us not only the speed of a body but also the direction along which the body is moving.Velocity of a body is a vector quantity.It is equal to the displacement of a body in unit time. What is the ...

## Speed:Definition,formula,examples and problems

Speed Velocity Acceleration What is speed in physics? “The distance covered by an object in unit time is called its speed”.In other words ,the rate at which object is moving is called speed.Unit time may be a second,an hour,a day or a year.It tells us how fast or slow an object is moving .Its formula is given as: Here S ...

## List of types of renewable energy sources & examples

Renewable energy sources list Energy from tides Energy from waves energy from sun energy from biomass energy from waste products Geothermal energy Solar energy Wind energy Heat energy light energy what are Renewable energy resources? “Renewable energy sources are those energy sources that can be regenerated quickly.”There are many sources of energy such as coal,oil and natural gas.These fuels are ...

## different forms of energy and their sources with pictures and examples

“Energy is the ability of a body to do work.”It is  present everywhere in sunlight,water,wind,plants,animals etc..It is required for walking, reading and playing.Energy does makes things for us like makes toast,plays music etc..A good source of energy would be the one which would: Do a large amount of work per unit volume or mass. Be easily be accessible Be ...