In a downtown office building, you notice each of the four sections of a rotating door has a mass of 85 kg. What is the width, in meters, of each section of the door if a force of 64 N applied to the outer edge of a section produces an angular acceleration of 0.430 rad/s²? m

In a downtown office building, you notice each of the four sections of a rotating door has a mass of 85 kg. What is the width, in meters, of each section of the door if a force of 64 N applied to the outer edge of a section produces an angular acceleration of 0.430 rad/s²? m

Name: In a downtown office building, you notice each of the four sections o
Uploaded: 2024-03-20T06:58:04.000Z
Channel: Bartleby
Description: In a downtown office building, you notice each of the four sections of a rotating door has a mass of 85 kg. What is the width, in meters, of each section of the door if a force of 64 N applied to the outer edge of a section produces anangular accele

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter8: Rotational Equilibrium And Rotational Dynamics

Section: Chapter Questions

Problem 35P: A rope of negligible mass is wrapped around a 225 kg solid cylinder of radius 0.400 m. The cylinder...

See similar textbooks

Similar questions

A rope of negligible mass is wrapped around a 225 kg solid cylinder of radius 0.400 m. The cylinder is suspended several meters off the ground with its axis oriented horizontally, and turns on that axis without friction, (a) If a 75.0-kg man takes hold of the free end of the rope and falls under the force of gravity, what is his acceleration? (b) What is the angular acceleration of the cylinder? (c) if the mass of the rope were not neglected, what would happen to the angular acceleration of the cylinder as the man falls?
In a downtown office building, you notice each of the four sections of a rotating door has a mass of 90 kg. What is the width, in meters, of each section of the door if a force of 62 N applied to the outer edge of a section produces an angular acceleration of 0.490 rad/s²? 3 WO W
A pulley (in the form of a uniform disk) with mass Mp and radius Rp is attached to the ceiling in a uniform gravitational field g and rotates with no friction about its pivot. Mass M2 is larger than mass mı, and they are connected by a massless inextensible cord. T1, T2, and Ts are magnitudes of the tensions. What is the relationship between the ten- sion T and mi g? T3 R 1. T¡ m1 9 ANS = OPTION 4 NEED SOLUTION
The polar ice caps have a combined mass of about 2.55 x 1019 kg. If all of the ice in the polar ice caps melted, by how much time would the length of a day (Earth's rotational period) change? For simplicity, assume each ice cap is an identical thin solid disk with a radius of 6.40 x 105 m. Find the change both in seconds and as a percentage of duration of a day. change in time percent change S %
You have a horizontal grindstone (a disk) that is 88 kg, has a 0.31 m radius, is turning at 89 rpm (in the positive direction), and you press a steel axe against the edge with a force of 17 N in the radial direction. Assuming that the kinetic coefficient of friction between steel and stone is 0.20, calculate the angular acceleration of the grindstone in rad/s2. What is the number of turns, N, that the stone will make before coming to rest?
A turntable is off and is not spinning. A 0.2 g ant is on the disc and is 5 cm away from the center. The turntable is turned on and 0.6 s later it has an angular speed of 33 rpm. Assume the angular acceleration is constant and determine the following quantities for the ant 0.3 s after the turntable has been turned on. Express all quantities using appropriate mks units. @= V= Enter a number ih units. atan = arad = a = Fnet =
Your 64 cm diameter car tire is rotating at 3.8 rev/s when suddenly you press down hard on the accelerator. After traveling 270 m, the tire's rotation has increased to 5.2 rev/s. What is the tire's angular acc? Give the answer in rad/s2.
Q. 25 If radius of solid sphere is doubled by keeping its mass constant, then Usiw m 000S I 4 (b),= I 1 (a)=n L 4 bod to sitrami I 2 Fr(c) (c) I2 2 I 3 II
A massless string is wrapped around a cylinder of mass 0.400 kg and radius 0.100 m. The string is attached to the ceiling. The cylinder is released. As it falls, the string unwinds. What is the magnitude of the acceleration of the cylinder as it falls in m per s2?
A CD has diameter of 120 millimeters. When playing audio, the angular speed varies to keep the linear speed constant where the disc is being read. When reading along the outer edge of the disc, the angular speed is about 200 rpm (revolutions per minute). Find the linear speed. Round answer two decimal places. The linear speed of reading along the outer edge of the disc is ____ meters per second.
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. People sit in seats facing the axis, their backs against the outer wall. At one instant the outer wall moves at a speed of 3.06 m/s, and an 71.1-kg person feels a 250-N force pressing against his back. What is the radius of a chamber?
Ex21 : A torque of magnitude 400 Nm acting a body of mass 40 acceleration of 20 rad/s?. Calculate M.I. of the body and radius of gyration. on kg. reduces an