Unformatted text preview: The positionversustime graph below describes the motion o± three di³erent bodies (labelled 1, 2, 3). 1 2 3 x B x A t A t B x t A B Consider the average velocities o± the three bodies. Which o± the ±ollowing statements is correct? 1. ¯ v 1 < ¯ v 2 < ¯ v 3 2. ¯ v 1 > ¯ v 2 > ¯ v 3 3. ¯ v 1 > ¯ v 2 and ¯ v 3 > ¯ v 2 4. ¯ v 1 = ¯ v 2 = ¯ v 3 correct Explanation: The defnition o± average velocity is ¯ v = displacement time = x Bx A t Bt A . All three bodies have exactly same displacement in exactly same time, hence all three average velocities are exactly equal, ¯ v 1 = ¯ v 2 = ¯ v 3 ....
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 Spring '09
 Turner
 Velocity, Imperial units, Gallon, 1 gal, average velocities, Muraj

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