How does the total Kinetic Energy before the collision compare to the total Kinetic Energy after...

How does the total Kinetic Energy before the collision compare to the total Kinetic Energy after the collision, for the case of inelastic collisions? How does it compare for elastic collisions?

Expert Solution

In case of inelastic collision :

Feom definition of Inelastic collisions, these are that type of collisions in which the total momentum of system remains conserved before and after collision but total kinetic energy doesn't conserved, i.e. Some amount of kinetic energy get lost during the collision process.

Hence the total initial kinetic energy is greater than total final kinetic energy.

( KE) initial > ( KE) final

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In case of elastic collision :

In these collisions, along with momentum the total kinetic energy of system also remains conserved during the collision process i.e. Zero energy loss process. In real world its impossible to have these type of collision because there is always some amout of energy lost in sparking, friction, heating and sound produced.

So the total initial kinetic energy of system is equal to total final kinetic energy of system

( KE) inital = (KE) final

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Comment in case any doubt.. Goodluck

genius_generous answered 2 years ago

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