Can someone help me with this question on conversions? A baseball pitcher pitches a ball at #92# miles per hour. Which of the following would give it in feet per second?

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2 Answers

As written, there is no way to get from the one measure to the other. See below for more:

Explanation:

Let's just look at the units on this question and see what conversion units are helpful.

#"miles"/"hour"->"feet"/"second"#

To get from miles to feet, the first conversion factor will be good.

To get from hours to seconds... with the options listed, we can't get there (I assume what was meant in that last conversion was 60 seconds to 1 minute, or perhaps what was meant was 3600 seconds to 1 hour, but as stated it's an incorrect conversion factor). I'll write this summary out both ways:

#cancel"miles"/cancel"hour"("feet"/cancel"mile")(cancel"hour"/cancel"minutes")(cancel"minutes"/"seconds")->"feet"/"second"#

or

#cancel"miles"/cancel"hour"("feet"/cancel"mile")(cancel"hour"/"seconds")->"feet"/"second"#

May 10, 2018

First and third

Explanation:

There are 5,280 feet in one mile, so you could multiply 5,280 by 92 to see how many feet per hour. Then converting the hour into minutes and then seconds you would use the third conversion