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Mathematics, 02.07.2021 06:10 potato3999

An object moves along a line in such a way that is position at time t is given by a. Find the velocity v(t) and acceleration a(t) of the object.
b. When is the object stationary? When is it advancing? Retreating?

I need to know how to do letter b.

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An object moves along a line in such a way that is position at time t is given by a. Find the veloc...
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