<s>[INST] How do meteorologists predict what the wind speed will be? [/INST] The wind speed can be measured by satellites estimating winds by tracking the motions of clouds, or water features if there are no clouds, from a sequence of satelettine images.</s>\ <s>[INST] How does one measure the speed of a meteor? [/INST] 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.</s>