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Work and Energy Free Response (algebra based) File

5 Comments

Kevin Merrill • 4 years ago • login to reply 
For the Algebra Based Free Response Questions, Question #1d I keep getting 2 times everything inside the radical instead of just the first term like the answer key says.  Just wanted to check to see if I did problem correctly.
Kevin Merrill • 4 years ago • login to reply 
Nevermind, I just found my mistake, I match the answer on the answer key now.  Sorry
John Ennis • 4 years ago • login to reply 
Kevin, Ok, glad you found it!  John
Michelle Beach • 4 years ago • login to reply 
I am having issues with question #8 a.  When I use conservation of energy K = U'+ K' and set h=Lsin37, I get v'=6.94m/s not 6.34 m/s. Please help.  Thanks!
John Ennis • 4 years ago • login to reply 
Michelle, I'm sorry, the answer key is incorrect.  You are correct.  This of course changes the answer to part (b) also.  I've uploaded a corrected version. Thanks!  John
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