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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
14 Oct 2021

Given information

Height (in meters) after    seconds is given by .

Find the velocity of the rock when

Step-by-step explanation

Step 1.

.

The velocity of the rock when is .

Now, the formula is as follows:

.

Now substitute value of the function and simplify as follows:

 

 

 

Substitute the limits and simplify.

  

 

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