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11 Cards in this Set
- Front
- Back
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to add vectors
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arrange head to tail, draw an arrow tail to head.
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to subtract vectors
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arrange head to head. draw arrow from tail to first to tail of second.
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to multiply vectors
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vector will point perpendicularly to both of the original vectors
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Common triangles
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3-4-5
5-12-13 |
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displacement
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position relative to the starting point.
Net distance. |
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Acceleration
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any change in velocity, (magnitude or direction)
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Velocity =
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Displacement/time
A vector. |
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Linear motion equations
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require constant acceleration
x = xo+ vot + ½ (at2) v = vo + at v2 = vo2 + 2ax |
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average velocity
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Vavg = 1/2 (v + vo)
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displacement vs time graph
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slope = instantaneous v
- upward = pos v - downward = neg v - straight = constant v - curved = changing v = a area beneath curve - no meaning |
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velocity vs time graph
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slope = instantaneous acceleration at that time
- upward = positive accel - downward = neg accel - straight line = constant accel - curved line = changing accel area beneath curve = distance or displacement |
