1.) An airplane has a mass of 31,000 kg and takes off under the influence of a constant net force of 42,500 What is the net force that acts on the plane’s 81 kg pilot?
2.In the amusement park ride known as Magic Mountain Superman, powerful magnets accelerate a car and its riders from rest to 54 m/s (around 120 mi/h) in a time of 7.5 s. The mass of the car and riders is 4600 kg. Find the average net force exerted on the car and riders by the magnets.
3.Airplane flight recorders must be able to survive catastrophic crashes. Therefore, they are typically encased in crash-resistant steel or titanium boxes that are subjected to rigorous testing. One of the tests is an impact shock test, in which the box must survive being thrown at high speeds against a barrier. A 41 kg box is thrown at a speed of 190 m/s and is brought to a halt in a collision that lasts for a time of 6.4 ms. What is the magnitude of the average net force that acts on the box during the colision?
4.) At a time when mining asteroids has become feasible, astronauts have connected a line between their 3560 kg space tug and a 6300 kg asteroid. Using their ship’s engine, they pull on the asteroid with a force of 490 N. Initially the tug and the asteroid are at rest, 500 m apart. How much time does it take for the ship and the asteroid to meet?
Help on any of these problems would be appreciated, Formulas would be nice too
