1.3 m Desk fan As future tutors of the next 2400 cohort, you and two friends are designing a demo for class. You take two 1.5 kg roller- skates and attach one to a 4 kg desk fan and the other to a 7 kg leaf-blower. Both objects are initially connected with a thin 1.3- m-long wooden dowl, effectively a massless rod for the sake of this problem. See the figure for prientations of the objects. Leaf blower 19.) Where is the center of mass of this system? Please give a distance relative to the desk fan (see figure). The wooden dowl is removed and replaced with a PVC pipe of the same length and with mass 1.3 kg (treat this as a thin rod for the purposes of this problem). A bolt is drilled through the center of the pipe into a recently waxed floor, creating a fixed axis of rotation. The fan and the leaf-blower are turned on and the system is released from rest. The leaf-blower exerts 14 N of thrust force, and the fan blows with a quarter of that. What is the magnitude of the net torque on the system as it rotates around its pivot on the floor? Twelve seconds after turning the system on, one of your friends turns the system off. What was the system's angular momentum (as a vector) just before they stopped it?

1.3 m Desk fan As future tutors of the next 2400 cohort, you and two friends are designing a demo for class. You take two 1.5 kg roller- skates and attach one to a 4 kg desk fan and the other to a 7 kg leaf-blower. Both objects are initially connected with a thin 1.3- m-long wooden dowl, effectively a massless rod for the sake of this problem. See the figure for prientations of the objects. Leaf blower 19.) Where is the center of mass of this system? Please give a distance relative to the desk fan (see figure). The wooden dowl is removed and replaced with a PVC pipe of the same length and with mass 1.3 kg (treat this as a thin rod for the purposes of this problem). A bolt is drilled through the center of the pipe into a recently waxed floor, creating a fixed axis of rotation. The fan and the leaf-blower are turned on and the system is released from rest. The leaf-blower exerts 14 N of thrust force, and the fan blows with a quarter of that. What is the magnitude of the net torque on the system as it rotates around its pivot on the floor? Twelve seconds after turning the system on, one of your friends turns the system off. What was the system's angular momentum (as a vector) just before they stopped it?

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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