The current mens world record in 400-meter dash is held by American runner michael johnson, with a time of 43.18 seconds. Assume the shape of a track to be circular with a circumference of 400m. Calculate his average velocity for the race.
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According to the question, Michael takes 43.18 seconds to cover 400 m. This is his average speed.
On a circular track of circumference 400 m, his starting and ending point will be the same, i.e. there will be no net displacement. So displacement is 0 and velocity also becomes 0
According to the question, Michael takes 43.18 seconds to cover 400 m. This is his average speed.
On a circular track of circumference 400 m, his starting and ending point will be the same, i.e. there will be no net displacement. So displacement is 0 and velocity also becomes 0
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