SPEED: m/s, how fast an object is moving, d/t, Mary walked 2 kilometers in 30 minutes., no direction, VELOCITY: m/s West, how fast and where is the object going, Δd/t, Jenna ran toward the lake at 7.7 km/hr., speed and direction, ACCELERATION: m/s2, change in direction, change in speed, The plane is taking off., The school bus went straight on Lewis then turned left on Brookside Avenue.,

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