Answer:
Average speed of the car is 48 km/hour.
Average velocity of the car is 34.15 km/hour in north east direction.
Explanation:
Total distance traveled by car = 16 km + 20 km = 36 km
Total time taken by car = 0.75 hour
Average speed of the car = [tex]\frac{\text{total distance}}{\text{Total time taken }}[/tex]
[tex]=\frac{36 km}{0.75 hour}=48 km/hour[/tex]
Average speed of the car is 48 km/hour.
A car traveled 16 km north and then 20 km east .The displacement of the car can be calculated by :
From figure given:
AB = 16 km
BC = 20 km
AC = Displacement
[tex]AB^2+BC^2=AC^2[/tex]
[tex]AC=\sqrt{(16 km)^2+(20 km)^2}=25.61 km[/tex]
Average velocity of the car = [tex]\frac{\text{total displacement}}{\text{Total time taken }}[/tex]
[tex]=\frac{25.61 km}{0.75 hour}=34.15 km/hour[/tex] in north east direction.
Average velocity of the car is 34.15 km/hour in north east direction.
