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Published byRose O’Neal’ Modified over 9 years ago
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Priya Rajkumar and Christina Ramrup
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DEFINE Magnitude Only Positive [Scalar] Magnitude Direction Positive or Negative Denoted by an arrow [Vector]
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ScalarVector Distance Length(m) Mass(kg) Speed (m/s) Energy (J) Displacement Velocity (m/s ²) Acceleration (m/s ²) Force (N) 5 meters 5 meters East
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How can we add vectors using the parallelogram method? draw vector 1 using appropriate scale and in the direction of its action from the tail of vector 1 draw vector 2 using the same scale in the direction of its action complete the parallelogram by using vector 1 and 2 as sides of the parallelogram the resulting vector is represented in both magnitude and direction by the diagonal of the parallelogram
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Parallelogram If two vectors are represented by two adjacent sides of a parallelogram, then the diagonal of parallelogram through the common point represents the sum of the two vectors in both magnitude and direction.
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Components of a Vector Horizontal Component Vertical Component R THE VERTICAL AND HORIZONTAL COMPONENTS MAKE A TRIANGLE AND SO WE CAN USE SINE AND COSINE TO CALCULATE A MISSING COMPONENT θ RxRx RyRy
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How can we define and calculate components of resultant vector? R x =R cosθ R y =R sinθ
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FxFx With the given information we can use COSINE!!! R x =R cosR y OR F x = F cos θ F x = 100N x cos(30°) F x = 100N x (√3)/2 F x = [C] 86.6 N
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Answer: D) an unlimited number because there is no finite amount of forces and you can have them acting at various magnitudes from various directions Answer: A) distance This question is comparing a vector quantity velocity to a scalar quantity speed. Displacement is a vector quantity that relates to distance a scalar quantity in the same way.
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