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14a
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 after one second.

Step-by-step explanation

Step 1.

.

The formula to calculate velocity is given by

   

Now, substitute to calculate the velocity after 1 second.

 

 

 

 

Substitute the limits and simplify.

 

 

 

  

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