Question

A is travelling at72km per hour on a high way while b is travelling at a speed of 25m per second what is the difference of their speed in metres per second

Answer 1

Answer:

5 m / s.

Step-by-step explanation:

⇒ A is travelling at 72 km / hr.

⇒ A is travelling at 72( 1000m / 3600 sec )      { 1 hour = 60 min = 60 x 60 sec = 3600 sec }

⇒ A is travelling at 72( 5 / 18 ) m / s

⇒ A is travelling at 20 m /s.

Speed of B is 25 m / s.

Thus,

Difference in their speeds is 25 m / s - 20 m / s = 5 m / s.

Answer 2

Step-by-step explanation:

Aloha!

Distance=72km/hr

=72×5/18

= 360/18

=20 m/s

Change in distance= 25-20

=5 m/s

Thank you

@ Twilight Astro ✌️☺️♥️