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Exercise 2.3.17 Sarah has attached a resistance cable to her foot to give her leg a Let r be the length of cable from the spool to Sarah's foot and 0 be the angle the cab with the ground. At a certain instant, the cable is 2 ft long and is angled at 15°, and foot has a velocity and acceleration of v = (4.33i + 2.5j) ft/s and a = 0.5j) ft/s2, respectively. Calculate r,r, è,and e at this instant. (0.87i + %3D

Exercise 2.3.17 Sarah has attached a resistance cable to her foot to give her leg a Let r be the length of cable from the spool to Sarah's foot and 0 be the angle the cab with the ground. At a certain instant, the cable is 2 ft long and is angled at 15°, and foot has a velocity and acceleration of v = (4.33i + 2.5j) ft/s and a = 0.5j) ft/s2, respectively. Calculate r,r, è,and e at this instant. (0.87i + %3D

Elements Of Electromagnetics
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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Exercise 2.3.17 Sarah has attached a resistance cable to her foot to give her leg a workout. Let r be the length of cable from the spool to Sarah's foot and 0 be the angle the cable makes with the ground. At a certain instant, the cable is 2 ft long and is angled at 15°, and Sarah's foot has a velocity and acceleration of v = (4.33i + 2.5j) ft/s and a = (0.87i+ 0.5j) ft/s?, respectively. Calculate r,r,0,and Ö at this instant.
Transcribed Image Text:Exercise 2.3.17 Sarah has attached a resistance cable to her foot to give her leg a workout. Let r be the length of cable from the spool to Sarah's foot and 0 be the angle the cable makes with the ground. At a certain instant, the cable is 2 ft long and is angled at 15°, and Sarah's foot has a velocity and acceleration of v = (4.33i + 2.5j) ft/s and a = (0.87i+ 0.5j) ft/s?, respectively. Calculate r,r,0,and Ö at this instant.
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