What is the Correct Solution to a Work, Power, and Energy Problem?

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SUMMARY

The forum discussion centers on a work, power, and energy problem where the correct answer is identified as option (A). Participants noted that while the initial approach to solving the problem was largely correct, the error occurred during the calculation of acceleration. This highlights the importance of accurately solving equations related to motion in physics problems.

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thunderhadron
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Hi friend please help me in solving this issue.
Thank you all in advance.

The problem is as such:


Attempt to the problem:





But the book says answer of the question is option (A)
 
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You did almost everything correctly, but made a mistake solving the equations for acceleration.
 
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