1. A 60-mm-radius drum is rigidly attached to a 100-mm-radius drum as shown. One of the drums rolls without sliding on the surface B shown, and a cord is wound around the other drum. Knowing that end E of the cord is pulled to the left with a velocity of 120 mm/s, determine (a) the angular velocity of the drums, (b) the velocity of the center of the drums, (c) the length of cord wound or unwound per second.

1. A 60-mm-radius drum is rigidly attached to a 100-mm-radius drum as shown. One of the drums rolls without sliding on the surface B shown, and a cord is wound around the other drum. Knowing that end E of the cord is pulled to the left with a velocity of 120 mm/s, determine (a) the angular velocity of the drums, (b) the velocity of the center of the drums, (c) the length of cord wound or unwound per second.

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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Question

1. A 60-mm-radius drum is rigidly attached to a 100-mm-radius drum as shown.
One of the drums rolls without sliding on the surface B shown, and a cord is
wound around the other drum. Knowing that end E of the cord is pulled to the left
with a velocity of 120 mm/s, determine (a) the angular velocity of the drums, (b)
the velocity of the center of the drums, (c) the length of cord wound or unwound
per second.
100 mm
60 mm
B
E

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