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T-bone T-bone A collision in which the front of a car crashes into the side of another car, forming a "T" shape. This is one of the more dangerous types of crash due to the relative vulnerability of side impacts where there is much less deformable structure on the side of a car to protect the driver.
Onboard video of Space Shuttle Solid Rocket Boosters rapidly decelerating to terminal velocity on entry to the thicker atmosphere, from 2,900 miles per hour (Mach 3.8) at 5:15 in the video, to 220 mph at 6:45 when the parachutes are deployed 90 seconds later—NASA video and sound, @ io9.com.
Braking distance refers to the distance a vehicle will travel from the point when its brakes are fully applied to when it comes to a complete stop. It is primarily affected by the original speed of the vehicle and the coefficient of friction between the tires and the road surface, [Note 1] and negligibly by the tires' rolling resistance and vehicle's air drag.
32–38 mph 50–61 km/h 13.9–17.1 m/s 13–19 ft 4–5.5 m Sea heaps up and white foam from breaking waves begins to be blown in streaks along the direction of the wind; spindrift begins to be seen Whole trees in motion; inconvenience felt when walking against the wind 8 Gale, fresh gale 34–40 knots 39–46 mph 62–74 km/h 17.2–20.7 m/s
Time-saving bias is a concept that describes people's tendency to misestimate the time that could be saved (or lost) when increasing (or decreasing) speed. [1] [2]In general, people underestimate the time that could be saved when increasing from a relatively low speed—e.g., 25 mph (40 km/h) or 40 mph (64 km/h)—and overestimate the time that could be saved when increasing from a relatively ...
[1] [2] He measured elapsed time with a water clock, using an "extremely accurate balance" to measure the amount of water. [note 1] The equations ignore air resistance, which has a dramatic effect on objects falling an appreciable distance in air, causing them to quickly approach a terminal velocity. The effect of air resistance varies ...
The (quart) Marsh funnel time for typical drilling muds is 34 to 50 seconds, though mud mixtures to cope with some geological conditions may have a time of 100 or more seconds. [3] While the most common use is for drilling muds, which are non-Newtonian fluids, the Marsh funnel is not a rheometer, because it only provides one measurement under ...
Its predecessor, the Alfa class, could attain short speed bursts of 40–45 knots (74–83 km/h; 46–52 mph) while submerged. [ 4 ] [ 5 ] There are also claims that the Soviet twin-propeller submarine K-222 , with titanium inner and outer hulls , reached 44.7 knots (83 km/h; 51 mph), fully submerged, during sea trials in 1969.