Question: 9 - 2 0 . Velocity and acceleration from position Consider the following position functions. a . Find the velocity and speed of the object.

9-20. Velocity and acceleration from position Consider the following position functions.
a. Find the velocity and speed of the object.
b. Find the acceleration of the object.
9.r(t)=(:3t21,4t23:), for t0
9 - 2 0 . Velocity and acceleration from position

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