Question

Convert the following speeds to m/s. 72km/h

Answer 1

HEY THERE!

WHILE CONVERTING KM/H TO M/S THE EASIEST WAY TO DO IT IS TO MULTIPLY IT WITH 5/18.

72*5/18=20

THEREFORE THE ANS IS 20M/S.

CHEERS

Answer 2

Solution:

We need to convert 72 km/h → m/s

To convert we have to multiply with 5/18

Now ,

→ 72 × 5/18

→ 4 × 5

→ 20 m/s

★ Knowledge enhancer :-

Derivation of the above used formula

Here , we used the formula to convert km/h → m/s

Because ,

♦ 1 km/h

Substituting 1 km = 1000 m & 1 hr = 60min

Here the units are in m & s

♦ 1 × 1000/60

♦ 5/18 m/s

Hence , derived !