Asked by mssailormouth
A runner can run a 400.0 meter lap in 50.0 seconds. He finishes at the same spot as he began. What is his average velocity?
Answers
Answered by
Damon
velocity is a vector, not a scalar
to measure speed, use a speedometer
to measure velocity yo need both a speedometer AND a compass.
It you go around a circle, you go the same distance in every direction
whatever your speedometer reads, you came back to the same spot
so your displacement was ZERO
V average = ZERO
to measure speed, use a speedometer
to measure velocity yo need both a speedometer AND a compass.
It you go around a circle, you go the same distance in every direction
whatever your speedometer reads, you came back to the same spot
so your displacement was ZERO
V average = ZERO
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