A 50-cm x 30-cm x 20-cm block weighing W is to be moved at a constant velocity of 0.80 m/s on an inclined surface with a friction coefficient of 0.27. (a) Determine the force F that needs to be applied in the horizontal direction. (b) If a t-mm-thick oil film with a dynamic viscosity of 0.012 Pa•s is applied between the block and inclined surface, determine the percent reduction in the required force. V = 0.8 m/s 50 cm 30 cm F 20° W t (mm) W (N) 200 0.35

A 50-cm x 30-cm x 20-cm block weighing W is to be moved at a constant velocity of 0.80 m/s on an inclined surface with a friction coefficient of 0.27. (a) Determine the force F that needs to be applied in the horizontal direction. (b) If a t-mm-thick oil film with a dynamic viscosity of 0.012 Pa•s is applied between the block and inclined surface, determine the percent reduction in the required force. V = 0.8 m/s 50 cm 30 cm F 20° W t (mm) W (N) 200 0.35

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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