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Unformatted text preview: The position-versus-time graph below de-scribes the motion o three dierent 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 B-x A t B-t A . All three bodies have exactly same displace-ment in exactly same time, hence all three av-erage velocities are exactly equal, v 1 = v 2 = v 3 ....
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This note was uploaded on 04/12/2010 for the course PHY 58195 taught by Professor Turner during the Spring '09 term at University of Texas at Austin.
- Spring '09