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Show that vu -2as by calculus method: |
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Answer» a = dv/dt a = (dv/ds)(ds/dt) a = v (dv/ds) ∫ a ds = ∫ v dv as = ½ v² + constant v = u at s = 0 a * 0 = ½ u² + constant constant = -½ u² as = ½ v² - ½ u² 2as = v² - u²v²=u²+2as |
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