S1w3 Flipped classroom Adding vectors - Gaspard Griffen | Library

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Review question: A man runs with a velocity of 10 mph, and then runs with a velocity of -10 mph. In simple terms this means

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Review question: A man runs with a speed of 10 mph, and then runs with a speed of -10 mph. In simple terms this means

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If I drop two balls that are different masses, which one will land first, assuming no air resistance?

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A unit vector is a vector with a magnitude of exactly 1 unit (whatever unit you are using) in a specific direction. If it is going in the positive x direction it is written as \hat{i} , which is read "i hat". the unit vector in the positive y direction would look like "j-hat".

sometimes we write vectors as being multiples of a unit vector, so the number shows the magnitude and the unit vector shows the direction. 

Drag each written vector to the picture of the vector shown in the picture.

which is the component way of describing vector 'a'

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Play with the phet simulation with 2d vectors. create the situation show below. What is the horizontal component of a?

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what is the horizontal component of b?

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what is the horizontal component of the sum of a+b

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Play with the simulation. press the 'sum' button to show the resultant vector a+b. rearrange the vectors like so. this is called the "tip to tail" method of vector addition. (if you want to use the phet simulation to check you work on problem 11, that is a good idea. How many of them did you get right?

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Turn on one of the "component views" like so. What is the relationship between the vertical components of a, b and s?

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A plane is flying 300mph. a gust of wind picks up going the opposite direction of the plane at 60 mph. What is the new speed of the plane?

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