Question

please answer fast urgent need please please please please please please please please please please please please​

Answer 1

Answer:

15 m/s = 54 km/s. since 18/5 is multiplied to m/s to change it into km/s

Answer 2

Answer:

54 km/hr

Step-by-step explanation:

Given : 15 m s⁻¹ = 15 m/s.

∴ 1 km = 1000 m

⇒ 1 hour = 60 minutes

⇒ 1 minute = 60 seconds

⇒ 1 hour = 60 * 60

Then,

15 m/sec = 15 * (60 * 60)/1000

              = 54 km/hr

Hope it helps!