A car travel 22 km south, 12 km West and 14km North in half an hour
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Answer:
Average speed = Total Distance/Total Time
= (22+12+14)/0.5 = 96km/hr
Displacement =
\sqrt{ {12}^{2} + {8}^{2} } = \sqrt{144 + 64} = 14.4km
Average velocity = Total Displacement/Total Time
= 14.4/0.5 = 28.8km/hr
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