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Thank you We sneak and here's your shmoop douceur brought

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to you by vector fields They're an important part of

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physics but also sound like they could be a cool

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group of superheroes aren't Which of the following is true

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about vector fields right Select two answers and here the

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pension wants president limited All right well vectors can be

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used to describe in calculate anything with magnitude and direction

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on a vector field is a pattern of vectors in

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space patterns determined by the distribution of sources that give

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rise to the field This sounds like a riddle but

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it's not just hang with us We don't mean to

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be totally abstract here So let's try to simplify things

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a bit Imagine a trampling with a bunch of marbles

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sitting on it If the trampoline is left alone the

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marbles won't go anywhere because of inertia They just sit

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there doing nothing like a Now imagine what would happen

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if we put a twenty pound weight in the middle

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of the trampling Well since the trampling would now sag

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toward the middle push down by the way the marbles

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would roll and moved toward the middle due to gravity

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Well the speed and direction of each marble is a

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vector And if we plotted the vectors beach marble we'd

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have the vector field right Looked like that Let's Continue

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our trampling experiment dress Be told we really wanted trampling

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and we might get one if we show it's for

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science using our trampoline Vector field We can see that

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the vectors air going in different directions so we know

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option b is incorrect Now let's Think of how the

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vector field would be different if the weight in the

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middle was fifty pounds Well in that scenario the marvel

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who had moved toward the wait at a faster speed

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because the trampling would sag more And that means that

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the vectors would be different because the magnitude of acceleration

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would be greater So the difference in vectors allows us

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to make a prediction about the source of the vector

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field So one of the correct answers has to be

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option d and if he is correct well then we

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know that sea is incorrect but we're not done yet

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We need two answers Remember now if you had the

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vectors in a vector field together you confined the net

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vector and that's a property of any two or more

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vector So option a is the other correct answer Now

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we've got that problem solved Let's get back to our

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action movie screenplay were vector fields are magnitude is awesome

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and our direction is wherever there's trouble way smell oscar

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