Question

I am asking when to change kilometre per hour to metre per second and centimetre to metre in a question not how to change i know how to change

Answer 1

bonjour dear!

your 1st question:- how to change km/h to m/s

1 km = 1000 m; 1 hr = 3600 sec.

1 km/hr = 1000/3600 m/sec = 5/18 m/sec

To convert km/hr into m/sec, multiply the number by 5 and then divide it by 18.

Convert 54 km/hr into m/sec.

Solution:

54 km/hr

Step 1:

Multiply 54 by 5

We have 54 * 5 = 270

Step 2:

Divide 270 by 18

270/18 = 15

Final Answer:

54 km/hr = 15 m/sec

your question 2:- how to change cm to m

divide the number by 100

for example,

500cm

= 500/100

= 5m

hope it helps

#be brainly