ch09-p061 - 61. (a) Let m1 be the mass of the cart that is...

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1 21 12 2 2(0.34 kg) (1.2 m/s) 1.9 m/s. 0.34 kg 0.099 kg fi m vv mm §· == = ¨¸ ++ ©¹ (c) The speed of the center of mass is v mv ii com ms . = + + = + + = 11 2 2 034 12 0 0 34 0 099 093 (. ) (.) .. . Values for the initial velocities were used but the same result is obtained if values for the final velocities are used. 61. (a) Let m 1 be the mass of the cart that is originally moving, v 1 i be its velocity before the collision, and v 1 f be its velocity after the collision. Let
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