90. F1 = (-5, 2) and F2 = (-7,-3) %3D %3D fi=a,i tas ff2=9itb;; f R=fitfa Rニ-S;t2j+(-71-3j) (-5-7)i +(2-3)j a) Resitmnt furce--12i-j -12i-J

Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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For Exercises 89-94, the given forces (in units of pounds) act on an object.
a. Find the resultant force, R.
b. What additional force F is needed for the object to be in static equilibrium? (See Example 11)
90. F1 = (-5, 2) and F2= (-7,-3)
%3D
%3D
R=fitfe
R=-Sit2j+(-71 -3j)
(-5-7)i +(2-3)j
- 12i-J
a) Resultant force -121-j
Transcribed Image Text:For Exercises 89-94, the given forces (in units of pounds) act on an object. a. Find the resultant force, R. b. What additional force F is needed for the object to be in static equilibrium? (See Example 11) 90. F1 = (-5, 2) and F2= (-7,-3) %3D %3D R=fitfe R=-Sit2j+(-71 -3j) (-5-7)i +(2-3)j - 12i-J a) Resultant force -121-j
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