13 I ReviewInitially, a 4-lb ball B is traveling around in a circle of radius ri = 3 ftwith a speed (vB), = 7.0 ft/s. At some moment the attached cord ispulled down through the hole with a constant speed v, = 2.8 ft/s.(Figure 1)Part ADetermine the ball's speed at the instant r2 = 2 ft. Neglect friction and the size of the ball.Express your answer to three significant figures and include the appropriate units.?(vB)2 =ValueUnitsSubmitRequest AnswerPart BHow much work has to be done to pull down the cord at the instant r2 = 2 ft? Neglect friction and the size of the ball.Express your answer to three significant figures and include the appropriate units.?Figure1 of 1 >W =ValueUnitsSubmitRequest AnswerBn = 3 ft< Return to AssignmentProvide Feedback(VB)1

Initially, a 4-lb ball Bis traveling around in a circle of radius Ti = 3 ft with a speed (vg), = 7.0 ft/s. At some moment the attached cord is pulled down through the hole with a constant speed v, = 2.8 ft/s. (Figure 1)

Initially, a 4-lb ball Bis traveling around in a circle of radius Ti = 3 ft with a speed (vg), = 7.0 ft/s. At some moment the attached cord is pulled down through the hole with a constant speed v, = 2.8 ft/s. (Figure 1)

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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