A 1.10kg block is attached to a spring with spring constant 18 N/m. While the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 40cm/s .What is the block's speed at the point where x = 0.45 A?

The velocity is  

Explanation:

From the question we are told that

   The  mass is  

   The  spring constant is  

   The  speed is

    The  position considered is  x =  0.45 A  

Here A is the amplitude which is mathematically represented as

=>    

=>    

So    

=>    

Generally the speed at  x  is mathematically represented as

=>    

=>    

i think it's 35 meters

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not copied too! hope this !

joke:

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