A boy travels 8 km eastward to a point B and then 6km northward to another point C. Determine the difference between the magnitude of displacement of the boy and distance travelled by him
-
A.
2.0km -
B.
4.0km -
C.
10.0km -
D.
13.0km
Correct Answer: Option B
Explanation
AC = (sqrt{8^2 + 6^2}) = 10km
Distance travelled = 8 + 6 = 14km
Difference = 4 – 10 = 4km