a rotatind sheaviest hinged door is at Lawrence Livermore National Laboratory. It has a mass of 44,000 kg, a rotational moment of inertia about its binges of 8.7 x 104 kg - m². and a face with a width of 2.4 m. 5N a) What steady force, applied at its outer edge perpendicular to the plane of the door, is necessary to * move it through an angle of 90° in a time of 30 s? 303.1 b) In doing as described in part a, what torque is exerted on the door? 113 c) How much energy does closing the door require?

a rotatind sheaviest hinged door is at Lawrence Livermore National Laboratory. It has a mass of 44,000 kg, a rotational moment of inertia about its binges of 8.7 x 104 kg - m². and a face with a width of 2.4 m. 5N a) What steady force, applied at its outer edge perpendicular to the plane of the door, is necessary to * move it through an angle of 90° in a time of 30 s? 303.1 b) In doing as described in part a, what torque is exerted on the door? 113 c) How much energy does closing the door require?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter10: Fixed-axis Rotation

Section: Chapter Questions

Problem 10.7CYU: Check Your Understanding The fan blades on a jet engine have a moment of inertia 30.0kgm2 . In 10s,...

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