A person walks 30 m to the east and then 40 m to the north to reach his office. What is the total displacement of the person?

30 m at an angle \(\theta = {\tan ^{ - 1}}\left( {\frac{4}{3}} \right)\)

40 m at an angle \(\theta = {\tan ^{ - 1}}\left( {\frac{3}{4}} \right)\)

50 m at an angle \(\theta = {\tan ^{ - 1}}\left( {\frac{4}{3}} \right)\)

70 m at an angle \(\theta = {\tan ^{ - 1}}\left( {\frac{3}{4}} \right)\)

A person walks 30 m to the east and then 40 m to the north to reach hi

1.	A person walks 30 m to the east and then 40 m to the north to reach his office. What is the total displacement of the person?
A.	40 m at an angle \(\theta = {\tan ^{ - 1}}\left( {\frac{3}{4}} \right)\)
B.	50 m at an angle \(\theta = {\tan ^{ - 1}}\left( {\frac{4}{3}} \right)\)
C.	30 m at an angle \(\theta = {\tan ^{ - 1}}\left( {\frac{4}{3}} \right)\)
D.	70 m at an angle \(\theta = {\tan ^{ - 1}}\left( {\frac{3}{4}} \right)\)
Answer» C. 30 m at an angle \(\theta = {\tan ^{ - 1}}\left( {\frac{4}{3}} \right)\)