Physics I Lab Manual 2011 44

# Physics I Lab Manual 2011 44 - displacements has components...

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EXPERIMENT 5. VECTOR ADDITION Figure 5.1: (left) Vector components and (right) graphical addition of vectors Adding vector components requires that you know the magnitude of the vectors’ components. In the preceding example the ﬁrst vectors being added has components of 2.8 km in both the north and east direction (corresponding to A x and A y in the left hand ﬁgure), while the second had components of 2.1 km north and -2.1 km east. Thus the sum of these
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Unformatted text preview: displacements has components of 2.8 km+2.1 km=4.9 km north and 2.8 km-2.1 km=0.7 km east. To ﬁnd the sum of two (or more) vectors graphically the vectors being added should be lined up tip-to-tail. The sum is then the vector from the tail of the ﬁrst to the tip of the last (the dashed vector in the right hand ﬁgure). 34...
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