1 m - s - km - hrA- 5-18B- 10-18C- 10-15D- 1-5

The correct option is B 18/5 1 hour =3600 seconds ∴ 1 second =1/3600 hour 1 km =1000 metre 1 metre =1/1000 kilometre Hence nbsp;1 m/s = 1/1000/1/3600 ...

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Byju's Answer

Standard VIII

Physics

Length

1 m / s = km ...

Question

1 $m / s$ = ____ $k m / h r$

$\frac{18}{5}$

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$\frac{5}{18}$

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$\frac{18}{15}$

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$\frac{11}{5}$

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Solution

The correct option is A
$\frac{18}{5}$

$1 h o u r = 3600 s e c o n d s$
$∴ 1 s e c o n d = \frac{1}{3600} h o u r$
$1 k m = 1000 m e t r e$
$1 m e t r e = \frac{1}{1000} k i l o m e t r e$
Hence 1 $m / s$ = $\frac{\frac{1}{1000}}{\frac{1}{3600}}$ $k m / h r$
= $\frac{18}{5}$

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1 m/s = ____ km/hr

The correct option is A 185 1 hour=3600 seconds ∴1 second=13600hour 1 km=1000 metre 1 metre=11000 kilometre Hence 1 m/s = 1100013600 km/hr = 185

1 $m / s$ = ____ $k m / h r$

The correct option is A
$\frac{18}{5}$

$1 h o u r = 3600 s e c o n d s$
$∴ 1 s e c o n d = \frac{1}{3600} h o u r$
$1 k m = 1000 m e t r e$
$1 m e t r e = \frac{1}{1000} k i l o m e t r e$
Hence 1 $m / s$ = $\frac{\frac{1}{1000}}{\frac{1}{3600}}$ $k m / h r$
= $\frac{18}{5}$