College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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- A gardener is using a tool as shown in the figure to pull weeds. You will notice that the tool is designed with a built in pivot point about which the torques are applied. If the gardener applies a 3.04-N · m torque (about the pivot point) in order to pull a weed, determine the resistive force the weed exerts on the weed puller. N 24 cm 6.0 cmarrow_forwardA worker opens a 1.50 m wide door by pushing on it with a force of 39.5 N directed perpendicular to its surface. ENT (a) What magnitude torque (in N. m) does she apply about an axis through the hinges if the force is applied at the center of the door? N.m (b) What magnitude torque (in N. m) does she apply at the edge farthest from the hinges? N. marrow_forwardForce F2 acts half as far from the pivot as F1. What magnitude of F2 causes the net torque on the rod to be zero?arrow_forward
- A uniform rod is set up so that it can rotate about an axis at perpendicular to one of its ends. The length and mass of the rod are 0.701 m and 1.29 kg , respectively. A force of constant magnitude ?F acts on the rod at the end opposite the rotation axis. The direction of the force is perpendicular to both the rod's length and the rotation axis. Calculate the value of ?F that will accelerate the rod from rest to an angular speed of 6.59 rad/s in 8.95 s.arrow_forwardA solid cylindrical disk has a radius of 0.12 m. It is mounted to an axle that is perpendicular to the circular end of the disk at its center. When a 40-N force is applied tangentially to the disk, perpendicular to the radius, the disk acquires an angular acceleration of 100 rad/s2. What is the mass of the disk? kgarrow_forwardA circular disk with a radius of 0.38 m is subject to 2 tangentially applied forces. The disc is fixed such that it will rotate about its center. Both forces produce a torque in the same direction. F1 = 3.5 N applied at the outer edge of the disc. F2 = 3.2 N applied at a distance of 0.28 from the center of the disc. What is the net torque on the disc?arrow_forward
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