Question

required information. a car travels with an average speed of 40 m/s. what is this speed in km/h? the average speed of the car in km/h is .

Explanation:

Step1: Convert meters to kilometers

Since 1 km = 1000 m, 1 m = $\frac{1}{1000}$ km. So 40 m = $40 \times \frac{1}{1000}$ km = $\frac{40}{1000}$ km.

Step2: Convert seconds to hours

Since 1 hour = 3600 s, 1 s = $\frac{1}{3600}$ h.

Step3: Calculate speed in km/h

Speed = $\frac{\text{distance in km}}{\text{time in h}}$ = $\frac{\frac{40}{1000}}{\frac{1}{3600}}$ = $40 \times \frac{3600}{1000}$

Answer:

144 km/h