airplane flies parallel to the ground, undergoes 2 consecutive displacements.
the first is 39 km at 34.9 degrees west of north
the 2nd is 128 km at 61.1 degrees east of north
at what angle east of north is the plane's total displacement? answer in units of degrees
2007-09-27 12:03:04 · 2 answers · asked by lalalallalallalalal l 1 in Science & Mathematics ➔ Physics
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2007-09-27 12:10:55 · answer #1 · answered by Anonymous · 0⤊ 1⤋
Horz:
-39sin34.9 + 128sin61.1 = 89.74458km
Vert:
39cos34.9 + 128cos61.1 = 93.8461km
Angle = arctan(89.7458/93.8461) = 43.7206 degrees east of north
2007-09-27 20:00:33 · answer #2 · answered by jsardi56 7 · 0⤊ 0⤋