Identify the unit vector in the following:
A. \(\hat{i}+\hat{j}\)
B. \(\frac{\hat{i}}{\sqrt{2}}\)
C. \(\hat{k}-\frac{\hat{j}}{\sqrt{2}}\)
D. \(\frac{\hat{i}+\hat{j}}{\sqrt{2}}\)
Answer:D
Identify the unit vector in the following:
A. \(\hat{i}+\hat{j}\) B. \(\frac{\hat{i}}{\sqrt{2}}\) C. \(\hat{k}-\frac{\hat{j}}{\sqrt{2}}\) D. \(\frac{\hat{i}+\hat{j}}{\sqrt{2}}\)