More on Instantaneous Rate (3.2.4)

Question 1

How do you find the time when an object reaches a point and the velocity of the object at that point?

Answer 1

• Set the position function equal to a specific location to find the time that an object reaches that point. Substitute the specified time into the derivative of the position function to find the velocity of an object at that time.

Question 2

How do you find the time when an object stops?

Answer 2

• Set the derivative of the position function equal to zero to find when the object stops.