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Any tips to do it quickly? Do you do it graphically or analytically.
Any tips to do it quickly? Do you do it graphically or analytically.
I use the tip to tail method. It shouldn't take more than 5-10 seconds.
http://chem4823.usask.ca/images/vector-addition.gif
It really is that simple. If there are more vectors, keep adding them to the tip.
I was kind of wondering what the OP meant exactly... I haven't seen extremely complicated vector summation problems, and even if you needed to find a specific magnitude (we wouldn't be asked for polar coordinates so the exact direction wouldn't be something to worry about) you could just do a quick trig calculation and get it. Otherwise, I agree with you, just visually make the triangle to find the composite vector from the components.
Also should we expect them to be in majority 3-4-5 triangles?
I've yet to find a vector add/subtract problem that couldn't be done swiftly via tip to tail. MCAT answer choices are typically easy to narrow down with vectors.
Wikipremed, where have you been all my life!?