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11 August, 19:39

A 250-kg snowmobile is traveling north at 12 m/s. Suppose that 15 s later it is going south at 18 m/s what is the acceleration

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  1. 11 August, 20:08
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    From what I think, we first find the relative speed, which is the difference in speeds from both directions, being 18-12 = 6 m/s. then acceleration is given by speed/time or 6/15=2/5 or 0.4 m/s^2. / b. Momentum is given by mass*velocity and that could be 250*3 = 750Kgms^-1
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