What Information Can We Take from Graphs?

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Presentation transcript:

What Information Can We Take from Graphs? Finding displacement from a v-t graph AND Finding acceleration from a d-t graph

IN CLASS PRACTICE PROBLEMS

ANSWER KEY

ANSWER KEY

ANSWER KEY

NOTES

Displacement of a plane taking off Group Work – Acceleration from a d-t graph Graph the data on a d-t graph Smoothly sketch a best-fit curve Find 4 points on the curve (evenly spaced apart) and calculate the instantaneous velocity (show tangent line and all work) Fill in this table Sketch a vinst-t graph Calculate the slope (with units!) Fill in the blank: The slope tells us the ________ of the plane. Table 1: Displacement of a plane taking off Displacement (m) Time (s) 6 1 22 2 50 3 88 4 138 5 198 270 7 352 8 vinst (m/s) Instant in time (s)

ANSWER KEY

ANSWER KEY vinst (m/s) Instant in time (s) 23 2 44 4 65 6 79 8

ANSWER KEY The slope tells us the acceleration of the plane.