Meteoroids are what we call “space rocks” that range in size from dust grains to small asteroids. This term only applies when they’re in space.

Calculating the speed of a meteor is not an easy task as they vanish in a few seconds. One method of measuring the speed of a meteor is to use the kinetic energy calculation.

KE = (½) x mv2 

v2 = (KE/m) x 2 

v = 2(KE/m) 

Where, 

KE is the kinetic energy stored in the meteor 

v is the total mass or weight of the meteor 

Here is an example.

Given a meteor with a mass of 1.4 x 1020 kilograms and kinetic energy of 2.8 x 1020 joules, what will be the speed of the meteor? 

By using the formula, 

v = 2(KE/m) 

v = 2(2.8 /1.4) x 1010 

v = 20 km/sec 

The speed or velocity of the meteor is 20 km/sec.
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