Respuesta :

 112.6 km = 112600 m 
1.8 h = 1.8 x 3600 s = 6480 s 

112600 m / 6480 s 
= 17 m/s

Answer: The speed of the car is 17.4 m/s

Explanation:

Speed is defined as the ratio of distance traveled to the time taken.

Mathematically,

[tex]\text{Speed}=\frac{\text{Distance traveled}}{\text{Time taken}}[/tex]

We are given:

Distance traveled = 112.6 km = 112600 m    (Conversion used: 1 km = 1000 m)

Time taken = 1.8 hr = [tex]1.8\times 3600=6480s[/tex]     (Conversion factor: 1 hr = 3600s)

Putting values in above equation, we get:

[tex]\text{Speed of car}=\frac{112600m}{6480s}=17.4m/s[/tex]

Hence, the speed of the car is 17.4 m/s