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Work and Energy Skill Building Problems File

4 Comments

Christopher Crocker • 2 weeks, 3 days ago • login to reply 
Were struggling with getting the answer for #38 that is in the key. Our strategy is to use kinematics to solve for the initial velocity in the y. use it to find the velocity in the x. Plug that into energy conservation where EPE=GPE+KE and we got 100n/M more than you. Can you check this?
John Ennis • 2 weeks, 3 days ago • login to reply 
Christopher, I reworked the problem and got 151 N/m. That looks what you have.  Please let me know, and I'll update the answer key.  John
Christopher Crocker • 2 weeks, 2 days ago • login to reply 
Great, Thank you!
John Ennis • 2 weeks, 1 day ago • login to reply 
You're welcome, answer key is updated. And thanks again for the correction.  John
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