One kind of elevator has the elevator car hangingfrom a cable, which then passes over a pulley andconnects to a counterweight, as shown in (Figure1). The mass of a fully-loaded elevator (that is, theelevator and all its passengers) is 1700 kg , themass of the counterweight is 1550 kg , and thepulley has a radius of 0.4 m and a mass of 400 kgA motor drives the motion of the elevator byexerting a torque on the pulley. Assume thatfriction is negligibe.SubmitRequest AnswerPart CA group of people get on a fully-loaded elevator and ride it up three floors (a distance of about 9 meters), where they exitthe elevator. If it took 5 seconds for the elevator to travel up those three floors, how much power did the motor need toprovide?μνα ΑΣφFigure1 of 1SubmitRequest AnswerPart DTo 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).counterweightSubmitRequest Answerelevator ConstantsOne kind of elevator has the elevator car hangingfrom a cable, which then passes over a pulley andconnects to a counterweight, as shown in (Figure1). The mass of a fully-loaded elevator (that is, theelevator and all its passengers) is 1700 kg , themass of the counterweight is 1550 kg , and thepulley has a radius of 0.4 m and a mass of 400 kgA motor drives the motion of the elevator byexerting a torque on the pulley. Assume thatfriction is negligibe.Part AWhat is the magnitude of the torque the motor must exert in order to lift a fully-loaded elevator with a constant accelerationof magnitude 1.0m/s²?Hνα ΑΣφ?NmSubmitRequest AnswerFigure<) 1 of 1Part BWhat is the magnitude of the torque the motor must exert in order to lower a fully-loaded elevator with a constantacceleration of magnitude 1.0m/s²?counterNmweightSubmitRequest AnswerPart CelevatorA group of people get on a fully-loaded elevator and ride it up three floors (a distance of about 9 meters), where they exitthe olorator If it took 6 soconds for the olovator to travol up thos throo floors how much powor did the motor pood to

Given that mass of the counter weight and mass of the fully loaded elevator and radius of the pulley…

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)...

See similar textbooks

Similar questions

a bucket of water with a mass of 25 kilograms is lifted from a well by a rope which is wound around a cylinder with a radius of 0.10 meters. A 0.50 meter crank is attached to the cylinder so that it wraps the rope around the cylinder. what is the minimum force that must be applied to the crank to lift the water bucket ?
Jackson finds an old well with a rope, bucket, a shaft that spools the rope, and a large crank wheel that turns the shaft to bring up the bucket of water. The bucket and the water have a total mass of 10.33kg, the shaft has a diameter of 15cm, and the crank wheel has a radius of 0.625m. Ignoring the mass of the rope, use torque to find the tangential force on the crank wheel required to lift the bucket and the water at a constanst speed.
It is the property of the body to resist a rotation. A Moment of Inertia (B Rotational KE C Angular Momentum D Moment of torque
Two flywheels of negligible mass and different radii are bonded together and rotate about a common axis (see below). The smaller flywheel of radius 30 cm has a cord that has a pulling force of 50 N on it. What pulling force needs to be applied to the cord connecting the larger flywheel of radius 50 cm such that the combination does not rotate?
A bicycle wheel, of radius 0.300 m and mass 1.16 kg (concentrated on the rim), is rotating at 4.00 rev/s. After 54.2 s the wheel comes to a stop because of friction. What is the magnitude of the average torque due to frictional forces? ____ N⋅m
A wheel is spinning at 4.3 rpm, then brakes are applied and the wheel comes to a stop in 25 seconds. In radians, calculate the angular displacement of the wheel during the time it is stopping.
An Atwood's machine consists of blocks of masses m₁ = 13.0 kg and m₂ = 24.0 kg attached by a cord running over a pulley as in the figure below. The pulley is a solid cylinder with mass M = 7.60 kg and radius r = 0.200 m. The block of mass m., is allowed to drop, and the cord turns the pulley without slipping. M T2 Q (a) Why must the tension 7₂ be greater than the tension 7₁? This answer has not been graded yet. (b) What is the acceleration of the system, assuming the pulley axis is frictionless? (Give the magnitude of a.) m/s² (c) Find the tensions T, and T₂. T₁ = T2₂ =
What is the rotational speed ω of a windmill's blades if they are noted to be spinning at a rate of 12 RPMs?
A metal ball with 0.27 kg of mass and 0.050 m of radius rolled without slipping on a horizontal floor. A ramp was placed on the floor. The ball rolled up the incline without slipping to a vertical height of 0.47 m before stopping. The ramp has a length of 1.7 m along the incline. Find the speed of the ball before it reached the ramp. Hint: the ball has rotational kinetic energy. The rotational inertia of a solid sphere is (2/5)mr^2.
A rock tied to the end of string swings at a constant angular rate. If you are told that the string can support a total of 85 N of force before breaking, what is the maximum angular velocity the rock can rotate if the rock has a mass of 0.16 kg, and the length of the string is 0.5 m? Give your answer in units of radian per second
beles IN Fuente Editor Reutilizar archivos A pulley with a radius of 16 cm and a rotational inertia of 1 × 10 ° kg - m² is suspended from the ceiling A rope is wound over the pulley with a 2.0 kg block attached at one end and a 4.0 kg block tied at the other end. The system is released from rest and the rope does not slip on the pulley. when the speed of the heaviest block is 1.2 m / s, the rotational kinetic energy of the pulley is: a) Krotational=0.0281 J b) Krotational=0.0009 J c) Krotational=0.0007 J d) Krotational=0.0038 J
A coke can is suspended by a string from the tab so that it spins with a vertical axis. A 14 N perpendicular force at the edge causes rotation. Find the angular acceleration if the can has a radius of 4 cm and a mass of 427 grams.