Helicopters have a small propeller on their tail to keep them from rotating in the opposite direction of their main lifting blades. Explain in terms of Newton’s third law why the helicopter body rotates in the opposite direction to the blades.
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The helicopters lift the entire system by the horizontal propellers called main rotors or main rotating blades. The main rotors produce aerodynamic lift force and make the helicopter to fly by overcoming the air drag. When the blades rotate in a direction, a reaction torque is set up and opposes the rotation of the blades. This phenomenon is explained by Newton's third law. The rotation of the blades is the action and the opposite reaction is the rotation of the helicopter body. Finally, the helicopter body tries to spin.
Textbook: College Physics
Author: Paul Peter Urone, Roger Hinrichs
College Physics was written by and is associated to the ISBN: 9781938168000. Since the solution to 16CQ from 10 chapter was answered, more than 657 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: College Physics , edition: 1. This full solution covers the following key subjects: blades, opposite, direction, main, helicopter. This expansive textbook survival guide covers 34 chapters, and 3125 solutions. The full step-by-step solution to problem: 16CQ from chapter: 10 was answered by , our top Physics solution expert on 07/07/17, 04:39PM. The answer to “Helicopters have a small propeller on their tail to keep them from rotating in the opposite direction of their main lifting blades. Explain in terms of Newton’s third law why the helicopter body rotates in the opposite direction to the blades.” is broken down into a number of easy to follow steps, and 41 words.