Physics Passage Question-- Chapter 1 #2

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dtha9180
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Physics Passage Question-- Chapter 1 #2

Post by dtha9180 » Sun May 20, 2018 12:58 pm

passage about scaphoids/wrist rotation.

Question #2

when summing vectors A and H, does the length of vectors matter? I thought it would be vector C first, but the correct answer is vector E. I see the logic that the sum of a vertical vector A with a minimally left leaning H should give a mostly vertical vector. I just don't get why vector C isn't correct and whether lengths matter when summing vectors.
Last edited by dtha9180 on Sun May 20, 2018 1:22 pm, edited 1 time in total.
NS_Tutor_Katelyn
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Re: Physics Passage Question-- Chapter 1 #2

Post by NS_Tutor_Katelyn » Thu Jun 07, 2018 2:44 pm

dtha9180 wrote:passage about scaphoids/wrist rotation.

Question #2

when summing vectors A and H, does the length of vectors matter? I thought it would be vector C first, but the correct answer is vector E. I see the logic that the sum of a vertical vector A with a minimally left leaning H should give a mostly vertical vector. I just don't get why vector C isn't correct and whether lengths matter when summing vectors.
Length does matter when adding vectors (remember that every vector has both magnitude and direction), but that is not why C is wrong. C is wrong because it is too vertical. The sum of H and A should be roughly halfway between A and H, but C is far closer to A than H.
Katelyn Sawyer
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katelyn@nextsteptestprep.com
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