You start out by driving 50 miles north in 2 hours and 8 minutes, and then you stop and park for a while. Finally you drive another 22 miles south in 4 hours and 42 minutes. The average velocity for your entire trip was 3.28 miles per hour to the north. How much time did you spend parked? 1 hours 42 minutes 3 hours 25 minutes 0 hours 51 minutes 8 hours 32 minutes

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Units and Dimensions

These are generally defined as the terms which precede or describes the dimensions further. These are also further divided into two parts namely fundamental units and the derived units.