Objectives of this Experience. Measure the rate at which an object travels in free-fall. Define in your own words velocity and acceleration. Distinguish between initial, final and average velocity. Develop a basic understanding of vectors. Objectives of this Experience (continued).
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Magnitude and Direction
vector X + vector Y = vector R
Head to Tail Method
For example: If a plane was traveling due east at a speed of 120 mph and encountered a wind coming directly from the south, what would be the resulting speed of the airplane and in what direction would it be traveling?
All vectors can be resolved into their x and y components.
Pythagorean Theorem(Leg X)2 + (Leg Y)2 = (Hypotenuse R)2
R = X2 + Y2
Note: This only applies to right triangles
Sine ө = opposite/hypotenuse
Cosine ө = adjacent/hypotenuse
Tangent ө = opposite/adjacent
(Vf = final velocity. Vo = initial velocity.)
(Change in velocity/time)