How can i calculate velocity when given time and distance measurements?
i'm trying to get the average velocity of these : i don't necessarily need anyone to do the work, i more so need the formula and a simple demonstration !
distance (m)
average time (s)
0.5
0.5
1.0
2.1
1.5
3.3
2.0
5.5

First of all ... there isn't a shred of information about direction here,
so you're in no position to talk about 'velocity'.  That's not just a
big word for 'speed'.  They're two different things.  So let's just talk
about 'speed'.

Average speed  = 

                 (distance covered in some time)
divided by
                 (time to cover the distance).

You're given a distance and a time ?  Great !  Divide the distance
by the time, and you have the average speed during that time.

And don't forget about the units.

(0.5 meter) in (1.5 seconds) ?

Average speed = (0.5 meter) / (1.5 seconds)  =  1/3 meter/second .
.
.
etc.

1) when you rub your hands together quickly, the kinetic energy is converted to mechanical energy.2) thermal energy from the sun travels to earth as infrared waves.3) energy is transferred through the matter of space by electromagnetic waves. 4) when a match is burned, chemical potential energy is converted to thermal and radiant energy. 5) seismicwaves are caused by back and forth movement , or vibration, of an object. 6) mechanicalenergy in an engine changes thermal energy into kinetic energy to make a car move.

Ithink your answer is d