Math

QuestionConvert a bicycle speed of 6 m/s6 \mathrm{~m/s} to km/h\mathrm{km/h}. (Use 1 km=1000 m1 \mathrm{~km}=1000 \mathrm{~m})

Studdy Solution

STEP 1

Assumptions1. The speed of the bicycle is given as 6m/s6 \, m/s . The conversion factor from meters to kilometers is 1km=1000m1 \, km =1000 \, m
3. The conversion factor from seconds to hours is 1hour=3600seconds1 \, hour =3600 \, seconds

STEP 2

First, we need to convert the speed from meters per second to kilometers per hour. We can do this by multiplying the speed by the conversion factors.
Speedkm/h=Speedm/s×1km1000m×3600s1hourSpeed_{km/h} = Speed_{m/s} \times \frac{1 \, km}{1000 \, m} \times \frac{3600 \, s}{1 \, hour}

STEP 3

Now, plug in the given values for the speed and the conversion factors to calculate the speed in kilometers per hour.
Speedkm/h=6m/s×1km1000m×3600s1hourSpeed_{km/h} =6 \, m/s \times \frac{1 \, km}{1000 \, m} \times \frac{3600 \, s}{1 \, hour}

STEP 4

implify the equation by canceling out the units of meters and seconds.
Speedkm/h=6×11000×3600Speed_{km/h} =6 \times \frac{1}{1000} \times3600

STEP 5

Calculate the speed in kilometers per hour.
Speedkm/h=×11000×3600=21.km/hSpeed_{km/h} = \times \frac{1}{1000} \times3600 =21. \, km/hThe bicycle's speed is 21.km/h21. \, km/h.

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