Further Maths > 2020 > 37
WASSCE
Find the unit vector in the direction opposite to resultant of forces F1 = (-2i - 3j) and F2 = (5i - j)
A.
1/5( -3i - 4j)
B.
1/5(-31 + 4i)
C.
1/5(3i - 4j)
D.
1/5(3i + 4j)
Answer: B
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