111 15-111. A box having a weight of 8 Ib is moving around in acircle of radius ra = 2 ft with a speed of (VA)1 = 5 ft/s whileconnected to the end of a rope. If the rope is pulled inwardwith a constant speed of v, = 4 f/s, determine the speed ofthe box at the instant rg = 1 ft. How much work is done afterpulling in the rope from A to B? Neglect friction and the sizeof the box.-rB = 1 ft-A = 2 ftv, = 4 ft/sB(va) = 5 ft/s

To find: The speed of box at B and work done after pulling the rope from A to B. Given: The weight…

15-111. A box having a weight of 8 lb is moving around in a circle of radius r4 = 2 ft with a speed of (VA)1 = 5 ft/s while connected to the end of a rope. If the rope is pulled inward with a constant speed of v, = 4 ft/s, determine the speed of the box at the instant rg = 1 ft. How much work is done after pulling in the rope from A to B? Neglect friction and the size of the box. -TB-1 ft- A=2 ft v, 4 ft/s = (VA)15 ft/s B

15-111. A box having a weight of 8 lb is moving around in a circle of radius r4 = 2 ft with a speed of (VA)1 = 5 ft/s while connected to the end of a rope. If the rope is pulled inward with a constant speed of v, = 4 ft/s, determine the speed of the box at the instant rg = 1 ft. How much work is done after pulling in the rope from A to B? Neglect friction and the size of the box. -TB-1 ft- A=2 ft v, 4 ft/s = (VA)15 ft/s B

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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