A.runner.travels.around.rectangle.track.with.length=50metersandwidth=20meters.After.travelling.around.rectangle.track.two.times,runner.is.back.to.startingpoint.If. time.elapsed=100seconds,determine.average.speed.and.average.velocity.
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Answer:
Circumference of rectangle = 2*50+ 2*20 = 140 meters.
Travels around rectangle 2 times = 2*140 = 280 meters
Distance=280 meter
Displacement = 0 meter
Average speed = distance / time elapsed = 280
280/100=2.8
verage velocity = displacement / time elapsed = 0 / 100 = 0
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