![]() Collect data from the experiment and graph the results.Use a balloon model explain the different forces that act on the rocket. Explain practical applications of Newton's laws of motion.The spacecraft moves forward in an amount equal to the force of the gas leaving the thruster, causing enough movement to re-orient the path of the object and keep it in orbit.Īfter this activity, students should be able to: To keep them in orbit, engineers exploit the second law by designing thrusters that burn fuel and expel it from the thruster. Eventually, satellites slow down due to the miniscule drag in the upper atmosphere, to the point at which gravity pulls them out of orbit. Just like a ball can be twirled on the end of a string, satellites and spacecraft stay in orbit around the Earth due to the balance between gravitational and centripetal forces. Engineers of all disciplines apply their understanding Newton's laws of motion to quantify the "invisible" forces acting on all objects.
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