The average speed of the horse has to be calculated
The measurement of physical properties of the system or substance is done in accordance with the SI system. There are seven fundamental quantities. The units and the symbols of each fundamental quantity is given in figure 1
The SI unit for the length is meter. The other units which are conventionally used are cable length, miles , nautical mile, fathom...etc. The conversions between some of the units are given below.
The average speed is the ratio of the total distance travelled to the total time taken
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