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Samir M.

asked • 10/26/20

Calculus natural science

A particle moves according to a law of motion s = f(t) = t3 - 12t2 + 45t, t 0, where t is measured in seconds and s in feet.

a.When is the particle speeding up? (????,????)U(????,????)

b.When is it slowing down?


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