contestada

Based on the tiles shown, how many meters per second is equivalent to 72 kilometers per hour?

Conversion factor tiles
A. 0.27 m/s
B. 20. m/s
C. 36 m/s
D. 1,000 m/s

Respuesta :

taskmasters
We are asked to convert the value 72 kilometers per hour to units of meters per second. We need conversion factors to multiply to this value. We convert as follows:

72 km / hr ( 1000 m / 1 km ) ( 1 hr / 3600 s ) = 20 m/s --->OPTION B

Answer:

The correct answer is option B.

Explanation:

Given speed of 72 km/hour.

1 kilometer = 1000 m

1 hour = 60 minutes

1 minutes = 60 seconds

1 hour = 60 × 60 seconds = 3600 seconds

[tex]72 km/h=\frac{72\times 1000 m}{1\times 3600 s}=20 m/s[/tex]

= 20 m/s

72 km/h = 20 m/s

Hence, the correct answer is option B.