Question

If the speed of a car is 50.4 km/h , find the distance covered in 3.6 hours.
Please help me friends

Answer 1

Answer:

We know the formula ;

Speed = \frac{Distance}{Time}

Time

Distance

But we have to convert the units ; km/h to m/s and 3.6 hours to seconds.

Therefore, 50.4 km/h = 14 m/s {

Formula ; Divide the speed value by 3.6}

And 3.6 hours = 12960 seconds.

So, Putting these values in formula,

Speed = \frac{Distance}{Time}

Time

Distance

,

Distance = Speed \times TimeSpeed×Time

Distance = 14\times1296014×12960

Distance = 181440 m

Therefore, Distance = 181440 m or 181.44 km

-------------------------------------

Alternative Short method :

Distance = \bold{Speed \times Time}Speed×Time

Distance = 50.4km/h\times3.6h50.4km/h×3.6h

Distance = 181.44 km

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Answer 2

Answer:

181.44 km

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