Chemistry, asked by mdebnath310, 4 months ago

John takes 10 minutrs to reach his school from his house. The distance of his school from his house is 1.2 km. What is his speed during his journey?

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Answered by FOXPOWER

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Answered by muneeshmishra001986

Answer:

The formula for average speed is distance over time, S=D/T. S is the variable we are solving for. You must convert the known units distance and time, if necessary, and input.

If we were to find Kilometers per minute we would setup the following equation:

S=1.2KM/10mins which equals .12KM/Min.

From there is an easy conversion to an hour. Multiply the previous result by 60.

60*.12=7.2KM/Hour.

To check you can input either speed and calculate backwards for either known constant.

.12=D/10mins, 10*.12=1.2 which is 1.2KM

Now again, this is only average speed. John may have not been traveling at that exact speed the whole time but over the ten minutes that is his average speed.

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