Answer:
Total distance of covered by Chanice is 12 km
8.60 km was her displacement in the direction of north-east.
Explanation:
Distance covered by Chanice in north direction = 7 km
Distance covered by Chanice in an east direction = 5 km
Total distance of covered by Chanice = 7 km+ 5 km = 12 km
Displacement is defined as shortest distance from initial point to final point.
In a ΔABC, the displacement of the Chanice = AC
ΔABC, is a right angled triangle.So, by applying Pythagoras theorem we can determine the the length of AC.
[tex]AB^2+BC^2=AC^2[/tex]
[tex](7 km)^2+(5 km)^2=AC^2[/tex]
AC = 8.60 km
8.60 km was her displacement in the direction of north-east.
