A load of mass 200kg is lifted by means of a rope which is wound several times round a drum and which then supports a balance mass of 150kg. As the load rises the balance mass falls. the drum has a diameter of 1.4m and a radius of gyration of 540mm, and its mass is 80kg. The frictional resistance to the movement of the load is 120N and that to the movement of the balance mass is 100N. The frictional torque on the drum shaft is 80NM. Find the Torque required on the drum, and also the power required at an instant when the load has an upward velocity if 3.5m/s and an upward acceleration of 1.4m/s?

A load of mass 200kg is lifted by means of a rope which is wound several times round a drum and which then supports a balance mass of 150kg. As the load rises the balance mass falls. the drum has a diameter of 1.4m and a radius of gyration of 540mm, and its mass is 80kg. The frictional resistance to the movement of the load is 120N and that to the movement of the balance mass is 100N. The frictional torque on the drum shaft is 80NM. Find the Torque required on the drum, and also the power required at an instant when the load has an upward velocity if 3.5m/s and an upward acceleration of 1.4m/s?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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