Question 29273
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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

{{{(Final Speed - Initial Speed)/Time Taken}}}

{{{(10-0)/20}}}

{{{10/20}}}

(((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






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