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To practice Tactics Box 3.3 Determining the component of a vector. When a vector

ID: 1528778 • Letter: T

Question

To practice Tactics Box 3.3 Determining the component of a vector. When a vector A is decomposed into component vectors A_1 and A_3 parallel to the coordinate axis, we can describe each component vector with a single number is scalar called the component. This Tactics Box describes how to determine the x component and y component of vector A_1 denoted A_2 and Y_3. Part A What is the magnitude of the component vector A_a shown in the figure? Part B What is the sign of the y component A_y of vector A shown in the figure?

Explanation / Answer

From the given vector diagram


vector A is represented with components as

   Ax along X direction and Ay along y direction

   from the given vector diagram the magnitude of vector Ax is along +x direction is 5 m

and


   the sign of Ay component is along -ve y direction so its sign is -ve

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