Question

A train travels at a speed of 48.6 km/h. Express this speed in i, m/s ii, cm/min

Answer 1

Answer:

m/s= 13.5m/s

in cm/min= 81000cm/min

Step-by-step explanation:

See the attachment.

Answer 2

Answer:

13.5 km/h

Step-by-step explanation:

1 km= 1000 m

1 hour= 3600 sec

So, 48.6×1000÷3600

The two zeroes would be cut out and 48.6 multiply by 10 divide by 36 would be left.

So, 10 and 36 would be cut out by the table of 2.

5 divided by 18 would be left.

So, 48.6 multiply by 5 would be 243.

And, 243 divided by 18 is 13.5