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Based on wind resistance, for example, the terminal velocity of a skydiver in a belly-to-earth (i.e., face down) free-fall position is about 195 km/h (122 mph or 54 m/s). [3] This velocity is the asymptotic limiting value of the acceleration process, because the effective forces on the body balance each other more and more closely as the ...
Millennium Force features a 310-foot-tall (94 m) cable lift hill with a 300-foot (91 m) drop, two tunnels, three overbanked turns, and three hills. The coaster also has a top speed of 93 mph (150 km/h). Since its debut, Millennium Force has been voted the number one steel roller coaster ten times in Amusement Today's annual Golden Ticket Awards ...
Power Tower at Cedar Point is a multi-tower attraction featuring a pair of Space Shot rides and a pair of Turbo Drop rides, arranged in a square-footprint with a crowning marquee and crisscrossed arches joining the four rides at their peaks. Power Tower is the only four-towered drop tower ride in the world to date, devoting two towers to each ...
In practice, however, the hangmen ignored this table and used considerably longer drops. A significantly revised edition of the Table of Drops was published in October 1913, allowing 1,000 foot-pounds force (1,400 J) of drop energy – and then from 1939 executioners routinely added nine more inches (23 cm) to the drop in the 1913 Table.
In mechanics and physics, shock is a sudden acceleration caused, for example, by impact, drop, kick, earthquake, or explosion. Shock is a transient physical excitation. Shock describes matter subject to extreme rates of force with respect to time. Shock is a vector that has units of an acceleration (rate of change of velocity).
Snap, [6] or jounce, [2] is the fourth derivative of the position vector with respect to time, or the rate of change of the jerk with respect to time. [4] Equivalently, it is the second derivative of acceleration or the third derivative of velocity, and is defined by any of the following equivalent expressions: = ȷ = = =.
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The g-force acting on an object in any weightless environment such as free-fall in a vacuum is 0 g. The g-force acting on an object under acceleration can be much greater than 1 g, for example, the dragster pictured at top right can exert a horizontal g-force of 5.3 when accelerating.