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Mathematics 18 Online
OpenStudy (anonymous):

A particle moves horizontally so that its position (in meters) to the right of its starting point at the time t seconds is given by f(t)=-3t^2+13t+16. a. At time t=2 seconds, is the particle moving to the left, right or stationary? b. Is the particle speeding up or slowing down at time t=2 seconds?

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