A car is traveling in a race. The car went from the initial velocity of 35 m/s to the final velocity of 65 m/s in 5 seconds. What is the acceleration?
Running is a method of terrestrial locomotion allowing humans and other animals to move rapidly on foot. Running is a type of gait characterized by an aerial phase in which all feet are above the ground (though there are exceptions). This is in contrast to walking where one foot is always in contact with the ground the legs are kept mostly straight and the center of gravity vaults over the ...
For example from the equation with an of 0.7 a rocket flying at Mach 0.85 (which most aircraft cruise at) with an exhaust velocity of Mach 10 would have a predicted overall energy efficiency of 5 .9% whereas a conventional modern air-breathing jet engine achieves closer to 35 % efficiency. Thus a rocket would need about 6x more energy; and ...
The fuel economy of an automobile relates distance traveled by a vehicle and the amount of fuel consumed. Consumption can be expressed in terms of volume of fuel to travel a distance or the distance travelled per unit volume of fuel consumed. Since fuel consumption of vehicles is a significant factor in air pollution and since importation of motor fuel can be a large part of a nation's ...
33. During a race a runner runs at a speed of 6 m/s . Four seconds later she is running at a speed of 10 m/s . What is the runner's acceleration ? 34. Explain how velocity is different from speed? 35 . Picture a ball traveling at a constant speed around the inside of a circular structure. Is the ball accelerating? 36.
A runaway car can be stopped by shifting the gears into reverse. Busted Using both an automatic and a manual car both cars were given the full force of the brake and stopped after 65 and 80 ft (20 and 24 m) resp...
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