Ask Question
11 August, 11:44

If A = (6i-8j) units, B = (-8i-3j) units, and C = (26i-19j) units, determine a and b

such that aA + bB + C = 0

+4
Answers (1)
  1. 11 August, 12:04
    0
    given equation

    aA + bB + C = 0

    Putting the given values

    a (6i-8j) + b (-8i-3j) + (26i-19j) = 0

    i (6a - 8b) - j (8a + 3 b) = - 26 i + 19 j

    comparing the coefficients of i and j

    6a - 8b = - 26

    8a + 3b = - 19.

    multiplying first equation by 4 and second equation by 3

    24a - 32 b = - 104

    24a + 9b = - 57

    9b + 32b = - 57 + 104

    41 b = 47

    b = 1.41

    6 a - 8 x 1.41 = - 26

    6a = - 14.72

    a = - 2.45
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “If A = (6i-8j) units, B = (-8i-3j) units, and C = (26i-19j) units, determine a and b such that aA + bB + C = 0 ...” in 📗 Physics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers