5) Calculate the net torque on the beam about a) an axis through O perpendicular to the page, and b) an axis through C perpendicular to the page. For each case, state whether the torque is clockwise or counter- clockwise. 30°/ 25 N 45° 20° C 10 N 2 m 30 N 4 m

5) Calculate the net torque on the beam about a) an axis through O perpendicular to the page, and b) an axis through C perpendicular to the page. For each case, state whether the torque is clockwise or counter- clockwise. 30°/ 25 N 45° 20° C 10 N 2 m 30 N 4 m

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)...

See similar textbooks

Similar questions

The minute hand on a watch is 6 cm long. If after 12:30 the tip of the minute hand has traveled a distance of 22 cm, it can be stated that: a) The angular velocity of the tip of the minute hand is greater than the angular velocity of a point located half the length of the minute hand. b) The tangential velocity of the tip of the minute hand and of a point located half the length of the minute hand have the same magnitude. c) The distance traveled by the tip of the minute hand would make it possible to predict the end time of the watch. d) The tangential acceleration of the tip of the minute hand and a point located half the length of the minute hand have the same magnitude.
The 29-N force P is applied perpendicular to the portion BC of the bent bar. Determine the moment of P about point B and about point A. Moments are positive if counterclockwise, negative if clockwise. Ariswers: M₂- i MA-1 P = 29 N 1.2 m B 47° 1.2 m N-m N-m
Rotational quantities must be treated as vectors for general rotational motion, such as when the axis of rotation can change directions. Use the right hand rule for angular velocity to determine the direction of the angular velocity for the motion shown below. +y +x +z (out) O +x O zero O -y O +z O +y O -x -z O o o o o o
Force F = (- 5.5 N )î + (2.9 N )ĵ acts on a particle with position vector 7 magnitude of the torque on the particle about the origin and (b) the angle between the directions of 7 and F ? = (4.3 m )î + (8.3 m )§.What are (a) the
The 31-N force P is applied perpendicular to the portion BC of the bent bar. Determine the moment of P about point B and about point A. Moments are positive if counterclockwise, negative if clockwise. C Answers: MB = MA= i i P = 31 N 1.7 m B 49° 1.7 m N.m N-m
A constant horizontal force of 10 N is applied to a wheel of mass = 10 kg and radius of 0.3 m. The center of mass of the wheel has an acceleration of 0.48 m/s/s. a) Determine the magnitude of the friction force acting on the wheel. b) Determine the magnitude of the rotational inertia if the linear acceleration were 0.48 m/s/s. You will have to recalculate the friction force.
*71. ssm A compact disc (CD) contains music on a spiral track. Music is put onto a CD with the assumption that, during playback, the music will be detected at a constant tangential speed at any point. Since vr = rw, a CD rotates at a smaller angular speed for music near the outer edge and a larger angular speed for music near the inner part of the disc. For music at the outer edge (r = 0.0568 m), the angular speed is 3.50 rev/s. Find (a) the constant tangential speed at which music is detected and (b) the angular speed (in rev/s) for music at a distance of 0.0249 m from the center of a CD.
q4
18) Consider an adult and a child riding their bikes. The adult's bicycle has tires with an outer diameter of 700 centimeters. The child's bicycle has tires with an outer diameter of 350 centimeters. The adult bicycle's tires are rotating with an angular velocity of 4.0 radians per second. If the child cyclist is traveling along the road at the same speed as the adult, then what angular velocity must the child's bicycle's tires be rotating at? [Assume the tires are rotating without slipping as the cyclists ride]. A) 1.0 radians second per B) 2.0 radians per second C) 4.0 radians per second D) 8.0 radians per second E) 16.0 radians per second abnoose e G
Unless otherwise stated, assume the density is constant
The 28-N force P is applied perpendicular to the portion BC of the bent bar. Determine the moment of P about point B and about point A. Moments are positive if counterclockwise, negative if clockwise. P = 28 N 1.3 m B o Answers: MB - i MA- i 40° 1.3 m N-m N-m
A piece of machinery is in the form of a uniform solid sphere with a mass of 225 g and a diameter of 3.00 cm, and it rotates around a frictionless axis passing through its center; however, at a point on its equator it rubs against a metal, producing a frictional force of 0.0200 N at that point. a) Calculate its angular acceleration. b) How long will it take to decrease its rotational speed by 22.5 rad / s?