Question

define kinetic energy.......

Answer 1

Kinetic energy is energy possessed due to motion.

Answer 2

Hey friend here is your answer.....

Answer :-

$\bold{kinetic \: energy \: }$

Anything has mass and is in motion has kinetic energy . This is true of solids , liquids and gases . For example , a flying ball has the energy to shatter a windowpane . A river flowing down a mountain has the energy to dislodge and carry rocks . A storm (air in motion) has the energy to uproot trees , damage houses , and so on .

A little thought will tell you that all things in motion do not have the same amount of energy . For example , rain falling on our hands does not hurt , but hailstones do because a raindrop is much lighter than a hailstone . That means the kinetic energy that something has depends on its mass . Also , a light breeze cannot uproot trees , but a storm does . That means kinetic energy also depends on speed . In general, the kinetic energy of a body depends on its mass and it's speed . The actual relation between these quantities is

$\small\bold{kinetic \: energy} = \frac{1}{2} \: \small \bold{mass} \: \times ( \bold{speed {)}^{2} }$

Hope it helps you.......