ch22_p43 - 43. (a) We use x = vavgt = vt/2: 2 2 x 2 2.0 10...

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43. (a) We use x = v avg t = vt /2: v x t == × × 2 220 10 15 10 27 10 2 8 6 . . . m s ms . c h (b) We use xa t = 1 2 2 and E = F / e = ma / e : E ma e xm et = ×× −− 2 160 10 10 10
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