An airplane has a mass of 25 Mg and its engines develop a total thrust of 40 kN during take-off. If the drag D exerted on the plane has a magnitude D= 2.25 v2, where is expressed in meters per second and D in newtons, and if the plane becomes airborne at a speed of 240 km/h, determine the length of runway required for the plane to take off.

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Q: During its final approach to the runway, the aircraft speed is reduced from 326 km/h at A to 210…

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Q: A 3140-lb car travels up the 4-percent incline shown. The car is subjected to a 70-lb aerodynamic…

A: Given data: ν=66 mi/hrforce=(70+51) lb3140 lb car travels with 4 percent inlcineTo find:constant…

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A: Given data: The net force acting on the encyclopedia, Fnet = 15 N. Acceleration of encyclopedia…

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Q: Determine the weight W of a satellite when it is inorbit 20.2(106 ) m above the surface of the earth…

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.