Question

b. 72 km/h is equal to ---------------- m/s.​

Answer 1

Step-by-step explanation:

here is the correct answer

Answer 2

The given question is we have to fill in the blanks.

In general the

$1 \frac{km}{hr} = \frac{5}{18} \frac{m}{s}$

In other words, 1 km is equal to 1000 metres and

1 hour is equal to 60*60 seconds.

The given question is

$72 \frac{km}{hr} \: = 72( \frac{1000}{60 \times 60} )$

The question implies that the 72-kilometre distance is covered in one hour.

The kilometre and the hour can be converted into other units such as metres and seconds respectively.

$= 72( \frac{1000}{3600} ) \\ 72(0.27) = 20 \: \frac{m}{s}$

Therefore,72 km/h is equal to ------20---------- m/s.

The metre is the smallest unit when compared to a kilometre.

The second is the smallest unit when compared to an hour.

many metres is called kilometres and many seconds is called hour.

It can be found in another method by

$1 \frac{km}{hr} = \frac{5}{18} \frac{m}{s}$

$72 \frac{km}{hr} = 72( \frac{5}{18} )$

$= 4(5) \\ = 20 \frac{m}{s}$

Therefore,72 km/h is equal to ------20---------- m/s.

Hence, the final answer is 20 metres per second.

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