SOLUTION: How do I find the Rate Of Change when using a table?

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Question 29273: How do I find the Rate Of Change when using a table?
Answer by atif.muhammad(135) About Me  (Show Source):
You can put this solution on YOUR website!
Example:

Time(s)                        Speed(m/s)
0                                     0
10                                   5
20                                   10

Find rate of change of speed:

Take take sets of data:

We've take the data when time = 0s and 20s

Time(s)                        Speed(m/s)
0                                     0
20                                   10

To find rate of change of speed, we do

%28Final+Speed+-+Initial+Speed%29%2FTime+Taken

%2810-0%29%2F20

10%2F20

(((0.5m/s/s}}} There's a reason why I put "m/s/s" instead of "m/s". 

Rate of change of speed = acceleration

Speed is measured in m/s
Acceleration is measured in m/s/s

The rate of change we have found is the acceleration, therefore, 0.5m/s/s