Physics 2100-02 Spring 2017 CSULA HWA6 Finding Torque Finding Torque A force F o
ID: 2075908 • Letter: P
Question
Physics 2100-02 Spring 2017 CSULA HWA6 Finding Torque Finding Torque A force F of magnitude F making an angle with the x axis is applied to a particle located along axis of rotation A, at Cartesian coordinates (0,0 in the figure. The vector F lies in the xy plane, and the four axes of rotation A. B, C, and D all lie perpendicular to the xy plane. Figure 1) Figure session masteringphysics.com Mastering Physics: HW a6 Watch Kong: Skull Island 2017 Online I Free Movies Help Chegg.com r previous l 6 of 11 l next a Aparticle is located at a vector position r with respect to an axis of rotation (thus r points from the axis to the point at which the particle is located). The magnitude of the torque T about this axis due to a force F acting on the particle is given by T TF sin(a) moment arm) F F where a is the angle between r and F. r is the magnitude of r. Fis the magnitude of F.the component of r that is perpendicualr to P is the moment arm. and Fu is the component of the force that is perpendicular to T Sign convention: You will need to determine the sign by analyzing the direction of the rotation that the torque would tend to produce. Recall that negative torque about an axis corresponds to clockwise rotation. In this problem, you must express the angle a in the above equation in terms of 0. d, and/or r when entering your answers. Keep in mind that 180 degrees and (m/2) 90 degrees Part A What is the torque TA about axis A due to the force F? Express the torque about axis A at Cartesian coordinates (0,0) TA. Submit Hints My Answers Give Up Review Part Part B What is the torque Te about axis B due to the force F? (B is the point at Cartesian coordinates (0, b), located a distance b from the origin along the y axis. Express the torque about axis B in terms of F, B, do, 7r, and/or other given coordinate data Submit Hints My Answers Give Up Review PartExplanation / Answer
a] torque about A = 0 as F passes through A
b] torque about B = F* cos theta * b
c]torque about C = - F* sin theta *c
d] torque about D = F* sin [phi - theta] *d