Question

Determine the magnitude and direction of î + į and î - j
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Answer 1

Answer:

for ˆi+ˆj

magnitude = √2

direction +45° to the x-axis

for ˆi−ˆj

magnitude = √2

direction = −45° to the x-axis

Explanation:

for  ˆi+ˆj

∣ˆi+ˆj∣= √(1^2+1^2) = √2

direction= tan−1(11) = +45oto the x-axis

for ˆi−ˆj

∣ˆi−ˆj∣=√(1^2+1^2)=√2

direction = tan−1 (−11) = −45o to the x-axis