One kind of elevator has the elevator car hanging Submit Request Answer from a cable, which then passes over a pulley and connects to a counterweight, as shown in (Figure 1). The mass of a fully-loaded elevator (that is, the elevator and all its passengers) is 1700 kg , the mass of the counterweight is 1550 kg , and the pulley has a radius of 0.4 A motor drives the motion of the elevator by exerting a torque on the pulley. Assume that friction is negligibe. Part C and a mass of 400 kg A group of people get on a fully-loaded elevator and ride it up three floors (a distance of about 9 meters), where they exit the elevator. If it took 5 seconds for the elevator to travel up those three floors, how much power did the motor need to provide? Nνα ΑΣφ ? Figure < 1 of 1> Submit Request Answer Part D To see the value of the counterweight, repeat the calculation in Part C if the elevator had no counterweight (or alternatively, if the mass of the counterweight were Okg). ? counter weight Submit Request Answer elevator
One kind of elevator has the elevator car hanging Submit Request Answer from a cable, which then passes over a pulley and connects to a counterweight, as shown in (Figure 1). The mass of a fully-loaded elevator (that is, the elevator and all its passengers) is 1700 kg , the mass of the counterweight is 1550 kg , and the pulley has a radius of 0.4 A motor drives the motion of the elevator by exerting a torque on the pulley. Assume that friction is negligibe. Part C and a mass of 400 kg A group of people get on a fully-loaded elevator and ride it up three floors (a distance of about 9 meters), where they exit the elevator. If it took 5 seconds for the elevator to travel up those three floors, how much power did the motor need to provide? Nνα ΑΣφ ? Figure < 1 of 1> Submit Request Answer Part D To see the value of the counterweight, repeat the calculation in Part C if the elevator had no counterweight (or alternatively, if the mass of the counterweight were Okg). ? counter weight Submit Request Answer elevator
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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