Lab Day and Time Torque and Rotational Equilibrium (Human Arm Simulation) Pre-La
ID: 1876262 • Letter: L
Question
Lab Day and Time Torque and Rotational Equilibrium (Human Arm Simulation) Pre-Lab Until now, the objects with which you have been concerned have could be treated as points, i.e.. you have not had to consider where on an object a force is applied. For real-world objects, however, the position of the 2F pivot F 11 F/2 Figure 1: Forces on a bar 1. The bar in Figure I represents a door (top view) pivoted as shown. Use the nearest door to you and follovw the instructions for each of the following questions. a. Consider that only one of the forces is being applied at each time (one force at a time). Rank the forces in terms of how effective they will be at rotating the door about the pivot. Justify your ranking. b. Where force is responsible for causing an object to move in space, torque (T) is responsible for causing an object to rotate. The torque exerted by a force is dependent on the magnitude of that force. Based on your answer in the previous question, what sort of relationship exists between torque and the magnitude of the applied force? Explain. Date Modified: November 25, 2017 Torque and Rotational Equilibrium Page 1 of 12Explanation / Answer
a. Rotation of door about pivot point is determined by the moment of force about pivot. This moment of force depends directly on the magnitude of force hence it is clear that turning will be easiest with force 2F at B, than with force F at A and C and will be least easy with F/2 at D.
b. This moment of force is known as Torque so torque depends directly on the magnitude of force.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.