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Physics Lecture – 8 – Vector Addition
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44 responses to “Physics Lecture – 8 – Vector Addition”
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How do you come up with 130cm?
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I like your trucks.
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Would the stump be moved in the direction as the added vectors or continuing along the 130 vector line?
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WTH…what is the formula this way is too complicated
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Since you shift the line, the angle need to change to its reference angle. the original angle is 45 means that the reference angle is 135 (180-45=135). Then use the laws of Cosine to solve the missing side which is 139.8967.
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hi there professor i want to find out how grams of force does the armature bar of a tattoo machine and other things about it as in how much magnetism the coils produce at 7 volts and how many times per sencond does the armature bar beats on the coil´s nucleous , please I need this info for a book am trying to write taking you in concideration in the book.
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Do all Americans say tons instead of newtons for force calculations? Awesome job bro!
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Learning AND laughing, well done sir.
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Thanks
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why is it 130 tons?
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what is the program that you use?
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What if there were 3 trucks pushing the stump? Would vector addition still work?
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"Listen, rednecks, you need to do vector addition." lol
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For the ones who are saying to use law of cosine, could we use heron's formula to calculate the measure of the third side? Thank you 😀
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I want to know the actual numbers for this.
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Use the law cosine
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what if you switched around the heads? you moved the bigger one (100 cm) to the tail of the 50 cm, how do you know which one to move? btw love ur videos, I'm learning lots
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Use a2+ b2=c2
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are rednecks bad?
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Jirection
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How do you calculate force
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So kind of like triangulation?
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Man thanks for this awesome video cod in my tuition centre, I completely didn't understand this. Now I think it's cleared up a bit 🙂
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Very cool! 🙂
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also the pythagorean theorem wouldn't make sense in such situation….. triangle sides don't have directions, unlike vectors.
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The Pythagorean Theorem only applies to right triangles; this is not a right triangle.
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You can use Pythagorean Theorem, actually. Cosine would be easier though.
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It's 139.897 cm (or tons) long. The largest angle is 180º-45º = 135º. Using the law of cosines, you should get that value.
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You cannot use the Pythagorean theorem… why? because it is not a right angled triangle
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I've watched like 30 videos from u just today both physics and biology…u don't know how u helped me. i don't know how to appreciate either…Thanks a lot man…
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The hypotenuse is 111.803 not 130
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Because you divided 50 by 25 to get 2 and 100 by 25 to get 4, you need to multiply to your answer by 25 to get 130.. If that makes sense..?
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so without knowing the exact angle the length of the dotted line can't be determined
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gotta use cosine law here buddy
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Doesn't matter which tail is attached to which head. They both yield the same result.
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seems easy
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I would have thought there would have been a ford collision.
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i think force is measured in newtons(N)
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If i use ratio and have 2cm west and 4cm northwest I will get say 5.2 tons which is not equivalent to 130 tons
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Silly ol' rednecks.
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fucking lol'd
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i think it is 160 tons
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jesus do you know physics too? not just C++
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