Reference Frames and Motion Vectors AcIVISY Activity 2.1 Name Date: ccanic litho

Question

Reference Frames and Motion Vectors AcIVISY Activity 2.1 Name Date: ccanic lithosphere allis from lox aned at latinade 45.9 N and lunge 1 299 W alung the Juan de Fsca ridge between the Pacific a Jean de Fuca Pas Pacific Plate reference pointNorth American Plate Juan de Fuca Plate North Figure A2.1.1 A Velocity Relative to an NNR Reference Frame. The plates move at about the same rate as that at which our fingemails grow The Pacific plate moves at a rate of 45.7 millimeters per year (mm/yt.) toward compass azimoth 3486in a rederence frame that is coemmonly used by geonciratists so define the motion of individual plates relative so the rest of the planet (a no-net rotation," or NNR reference frame l. Starting at the reference point in Fig. A2.1.2, use a ruler to dras an arrow that is 45. 7 mm long and points tomard 3096 Label the poine at the tip of the arrox P. This arrow represents the inntantancous velocity vector for the Pacific Plate at the reference point as that motion is observed in a NNR reference frame North reference point -270 West East 90 10 20 30mm South 180 Figure A2.1.2

Explanation / Answer

Just Draw and an angle ray at 309.6 degrees satrting from the reference point. as shown in figure.

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