Errors?

[BoneMental]

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I feel like I'm finding a lot of errors in this PR 2010-2011 review book I am using.

Does this question make sense?

"A weightlifter is holding a weight in her right hand. Her upper arm is pointed downwards at an angle of 45 degrees and her upper arm upwards at an angle of 45 degrees, both with respect to the horizontal...."

Um? How can your arm be pointing upwards and downwards at the same time? Am I being silly? It's late, so I don't have full faith in my logic skills right now..

 

[Essee]

I am using the same book and I just went through that problem a couple of hours ago and subsequently wtf-ed after reading it haha. There are a lot of mistakes in that section 👎

I actually just came on here to vent because they wrote theta < theta < 90deg and at this point I'm wondering if they even proofread

 

[redmoon]

Your arm from the elbow to the shoulder is pointing down from the shoulder to the ground. The elbow is bent and the part of the arm from the elbow to the hand is pointing up. I think.

 

[Donald Juan]

Is it the "cracking the mcat" book? because apparently a lot of people have noticed typos.

http://www.amazon.com/Cracking-2010...iewpoints=1&sortBy=bySubmissionDateDescending

 

[Ismet]

It's not a mistake...

 

[Donald Juan]

It's not a mistake...

While lifting weights is an effective way to build muscle and burn calories, I don't think this addresses the mistake.

 

[samvillian]

While lifting weights is an effective way to build muscle and burn calories, I don't think this addresses the mistake.

Umm... The arm is like this: \/ make sense?


the question probably meant to right "And the lower arm upwards"

 

[Ismet]

While lifting weights is an effective way to build muscle and burn calories, I don't think this addresses the mistake.

It's the way the girl is holding the weight. That is exactly what the OP's question is referring to, and the TPR question, while worded stupidly, is technically 100% correct.

 

[ridethecliche]

Hint: 45 degrees to the vertical or to the horizontal are the same thing.

 

[Donald Juan]

Umm... The arm is like this: \/ make sense?


the question probably meant to right "And the lower arm upwards"

Correct, it probably meant to say "lower" the second time it said "upper." They put the wrong word in the wrong place. That makes it a mistake.

It's the way the girl is holding the weight. That is exactly what the OP's question is referring to, and the TPR question, while worded stupidly, is technically 100% correct.

No it's not. I don't think you read it, the question makes no mention of the lower arm. So, the girls arm could be outstretched or who knows. All we know is that her upper arm is pointing 45 degrees above and below the horizontal. Yes, yes, I know it probably meant to say lower for one of those. It's a mistake and technically is 100% wrong.

Hint: 45 degrees to the vertical or to the horizontal are the same thing.

Hint: that has nothing to do with the problem.

Why are people trying to defend a typo?