University:
George Mason University
Course:
PHYS 160 | University Physics I
Academic year:

2023
Views:

49

Pages:

1
Author:

cacyedula5khx

Find , the length of the moment arm of the force. Express your answer in terms of and . = Learning Goal: To understand the two most common procedures for finding torques when the forces and displacements are all in one plane: the moment arm method and the tangential force method. Previous Answers The purpose of this problem is to give you further practice finding torques in two-dimensional situations. In this case it is overkill to use the full cross product definition of the torque because the only nonzero component of the torque is the component perpendicular to the plane containing the problem.  Correct To calculate the torque using the moment arm method, use the equation , where is the moment arm perpendicular to the applied force. There are two common methods for finding torque in a twodimensional problem: the tangential force method and the moment Figure  1 of 4   Part D  Find the magnitude of the torque Express your answer in terms of on the pole, about point A, due to the tension in the rope. , , and . = Previous Answers  Correct For this problem, the two methods of finding torque involved nearly the same of amount of algebra, and either method could be used. Of course, both methods lead to the same final result. Now consider a woman standing on the ball of her foot as shown (Figure 4). A normal force of magnitude acts upward on the ball of her foot. The Achilles' tendon is tt h d t th b k f th f t Th t d ll th ll b i th f th f t ith f Thi ll b h l th d th l b t thi b

Calculating Torques Using Two Standard Methods Pt. 2

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