R18-3. The drum has a mass of 50 kg and a radius of gyration about the pin at O of ko = 0.23 m. Starting from rest, the suspended 15-kg block B is allowed to fall 3 m without applying the brake ACD. Determine the speed of the block at this instant. If the coefficient of kinetic friction at the brake pad C is µg = 0.5, determine the force P that must be applied at the brake handle which will then stop the block after it descends another 3m. Neglect the thickness of the handle. DE 0.75 m 0.25 m 0.15 m C 0.5 m

R18-3. The drum has a mass of 50 kg and a radius of gyration about the pin at O of ko = 0.23 m. Starting from rest, the suspended 15-kg block B is allowed to fall 3 m without applying the brake ACD. Determine the speed of the block at this instant. If the coefficient of kinetic friction at the brake pad C is µg = 0.5, determine the force P that must be applied at the brake handle which will then stop the block after it descends another 3m. Neglect the thickness of the handle. DE 0.75 m 0.25 m 0.15 m C 0.5 m

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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R18–3. The drum has a mass of 50 kg and a radius of
gyration about the pin at O of ko = 0.23 m. Starting from
rest, the suspended 15-kg block B is allowed to fall 3 m
without applying the brake ACD. Determine the speed of
the block at this instant. If the coefficient of kinetic friction
at the brake pad C is µ̟ = 0.5, determine the force P that
must be applied at the brake handle which will then stop the
block after it descends another 3m. Neglect the thickness of
the handle.
-P
0.75 m
0.25 m
0.15 m
C
0.5 m
B

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