Western Washington University   College of Science and Technology   Physics/Astronomy Dept.   Bellingham, WA USA

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The relative speed and direction of the movement of a body.

photon in a vacuum 2.998 x 108 m/s electron (neutral hydrogen) 2.19 x 106 m/s	baseball (fast ball) 44.7 m/s tennis ball (pro serve) 62.5 m/s basketball (free throw) 7.65 m/s	garden slug (large) 1.85 x 10-3 m/s dog (greyhound) 17.8 m/s cheetah 31.3 m/s human (olympic sprinter) 10.1 m/s race horse 13.9 m/s elephant (African) 5.56 m/s tyranosaurus rex 6.94 m/s
38 caliber bullet (pistol) 182 m/s car (freeway) 31.3 m/s race car (formula 1) 98.3 m/s M1A1 Tank 18.8 m/s Space Shuttle (in orbit) 7.6 x 103 m/s Freight train 35.7 m/s aircraft carrier (JFK class) 15.43 m/s	Mercury (relative to Sun) 4.79 x 104 m/s Earth 2.98 x 104 m/s Jupiter 1.31 x 104 m/s Pluto 4.74 x 103 m/s	Sun (relative to galactic core) 2.2 x 105 m/s Pleiades (open cluster) 4.0 x 104 m/s M13 (globular cluster) 2.2 x 105 m/s

Mass   Velocity   Acceleration   Momentum   Radius   Density