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Problem

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Textbook Expert
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20 Dec 2021

Given information

Given , The equation of motion of a particle is   , where  is in meters and  is in seconds.

Step-by-step explanation

Step 1.
 the equation of motion of a particle  is in meters, and  is in seconds.
 
We need to find the acceleration after  
 
Acceleration is the derivative of velocity, therefore, we need to find the second derivative of the given equation.
 
Applying The Power Rule  and The Constant Multiple Rule, we obtain:
 Applying again The Power Rule, The Constant Multiple Rule and   we find the second derivative:
 
 
 
Remember that   is in meters, and   is in seconds.
 
Putting 2 instead of $t$ in the second derivative, we obtain that the acceleration after   is:  

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