While running around the track at school, Milt notices that he runs due East on the 100m homestretch and due West on the 100m backstretch. To train for the 800m event, he runs both the 100m homestretch and the 100m backstretch in 12.2 seconds. How do Milt's velocities on the homestretch and backstretch compare? A) The homestretch and backstretch have velocities with the same magnitude only. B) The backstretch velocity is greater in magnitude than the homestretch velocity. C) The home stretch velocity is greater in magnitude than the backstretch velocity. D) The homestretch and the backstretch have velocities with the same direction and magnitude.

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12 November, 00:42

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Aylin Moran · Answer 1

Answer a would be correct since velocity is a vector and has a magnitude and a direction. In this case v₁ = - v₂.