A metal bar is in the xy-plane with one end of the bar at the origin. A force F-(6.06 N)2+(-2.61 N )j is applied to the bar at the point x= 3.09 m. y = 3.82 m. V Part B What is the magnitude of the torque with respect to the origin produced by F? Express your answer with the appropriate units. T= 12.35 Submit μA N•m FIZZE ? Previous Answers Request Answer

A metal bar is in the xy-plane with one end of the bar at the origin. A force F-(6.06 N)2+(-2.61 N )j is applied to the bar at the point x= 3.09 m. y = 3.82 m. V Part B What is the magnitude of the torque with respect to the origin produced by F? Express your answer with the appropriate units. T= 12.35 Submit μA N•m FIZZE ? Previous Answers Request Answer

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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To study torque experimentally, you apply a force to a beam. One end of the beam is attached to a pivot that allows the beam to rotate freely. The pivot is taken as the origin or your coordinate system. You apply a force of F = Fx i + Fy j + Fz k at a point r = rx i + ry j + rz k on the beam. Part a) Calculate the magnitude of the torque, in newton meters, when the components of the position and force vectors have the values rx = 3.71 m, ry = 0.075 m, rz = 0.085 m, Fx = 1.2 N, Fy = -7.6 N, Fz = 1.2 N. Part b) If the moment of inertia of the beam with respect to the pivot is I = 72 kg˙m^2, calculate the magnitude of the angular acceleration of the beam about the pivot, in radians per second squared.
A centrifuge rotor rotating at 9500 rpm is shut off and is eventually brought uniformly to rest by a frictional torque of 1.19 m. N. Part A If the mass of the rotor is 3.67 kg and it can be approximated as a solid cylinder of radius 0.0900 m, through how many revolutions will the rotor turn before coming to rest? Express your answer to three significant figures. Z II N Submit Part B 垢 ΑΣΦ Request Answer How long will it take? Express your answer to three significant figures and include the appropriate units. ?
I Re You're carrying a 3.6-m-long, 24 kg pole to a construction site when you decide to stop for a rest. You place one end of the pole on a fence post and hold the other end of the pole 35 cm from its tip. Part A For the steps and strategies involved in solving a similar problem, you may view a Video Tutor Solution. How much force must you exert to keep the pole motionless in a horizontal position? Express your answer in newtons. Vo AE F = N Submit Previous Answers Request Answer
Ⓒ Macmillan Learning A pipe system consists of three pipes with lengths L₁ = 1.80 m, L₂ = 0.600 m, and L3 = 2.50 m. A plumber pulls on the end of the pipe system, at the point P, with a force Fp = -24.0 Ni + 45.0 Nj + 35.0 NK. What is the torque 7 due to Fp about the origin? Enter your expression using ijk unit vector notation. 7 = Incorrect 4₁ P -43.2i +27j +87.5k N.m
We wrap a light, nonstretching cable around a 7.00 kg solid cylinder with diameter of 40.0 cm. The cylinder rotates with negligible friction about a stationary horizontal axis. We tie the free end of the cable to a 15.0 kg block and release the block from rest. As the block falls, the cable unwinds without stretching or slipping. Part A How far will the mass have o descend to give the cylinder 540 J of kinetic energy? Express your answer in meters. h = In Submit Request Answer Provide Feedback
The fishing pole in the figure below makes an angle of 20.0° with the horizontal. What is the magnitude of the torque exerted by the fish about an axis perpendicular to the page and passing through the angler's hand if the fish pulls on the fishing line with a force F = 125 N at an angle 37.0° below the horizontal? The force is applied at à point L = 1.92 m from the angler's hands. N.m -I 20.0° 37.0 1 20.0° F
Part A Calculate the net torque about point O for the two forces applied as in the figure (Figure 1). The rod and both forces are in the plane of the page. Take positive torques to be counterciockwise. ■响 AL中 1 ? 28 -K T = N.m Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining Provide Feedback Next > Figure <- 1 of 1 F2 = 12.0 N F = 8.00 N 30.0° 不2.00 m*ー3.00 m 业 MacBook Air 80 000 000 II DD F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 24 & %23
A pulley on a frictionless axle has the shape of a uniform solid disk of mass 2.60 kg and radius 20.0 cm. A 1.90 kg stone is attached to a very light wire that is wrapped around the rim of the pulley (Figure 1), and the system is released from rest. For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of An unwinding cable ii. Part A How far must the stone fall so that the pulley has 5.00 J of kinetic energy? Express your answer with the appropriate units. HÅ h = .58 m 0 ?
A 50 g mass rotates in a vertical plane--call it the xy-plane with the y-axis pointing up--at the end of a 75-cm-long, massless, rigid rod. The other end of the rod is attached to a frictionless pivot at the origin. Part A What is the gravitational torque about the pivot when the mass is 30° above the +x-axis? Give your answer using unit vectors. Express your answer in newton-meters. Enter components of torque, separated by comma. ——| ΑΣΦ Tx, Ty, Tz = Submit Request Answer < Return to Assignment Provide Feedback W ? N.m
A. Five ropes in a pulley system support a large weight, W. What is the magnitude of the weight if the Tension in Rope #1 equals 100 N? The weight is in equilibrium. B. A pulling force of 600 N is being applied to that bracket at point A. Compute the magnitude of the moment about the origin, O. Be sure to also indicate whether the sign of the moment is positive or negative. C. Compute the unit vector, for the Resultant force in Problem #2. Fill in the blanks: ?= _________ + __________ + ___________????
n. inconsistencies. 2. A uniform rigid rod rests on a level, frictionless surface. The diagram below indicates four different combinations of (1) net force on the rod, Fnet, and (2) net torque on the rod about its center of mass, Tnet. In each box, draw vectors that represent one or two forces that achieve the given combination of net force and net torque. If any combination is not possible, state so explicitly. looge ad For example: In the second case, indicate one or two forces that could be exerted on the rod so- that at the instant shown the net force on it is zero, but the net torque on it is not zero. Top view IF|= 0, l7l= 0 IFl # 0, l7 |±0 do a JË = 0, l70 IF0, l7=0 net net net net net net net net