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Question
Vector A has a magnitude of 5N in the west direction and B has a magnitude of 2N in the east direction. Find out the value of 2A−B?
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Solution
The correct option is A 12 in the leftward direction
Given : →A=−5^i N →B=2^i N ∴ 2→A−→B=2(−5^i)−2^i=−12^i N Thus the value of (2A−B) is 12 towards left i.e West.
Given : →A=−5^i N →B=2^i N
∴ 2→A−→B=2(−5^i)−2^i=−12^i N
Thus the value of (2A−B) is 12 towards left i.e West.
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which
has magnitude 8 units.