A bug is observed to travel 72 cm in 7.5 seconds. What is the bug's speed in miles per hour?
thanks. i wanted the actual way to get it, but whatever.
actually, that's not the right answer. you end up getting .21 which is wrong for some reason.
To find the bug's speed in miles per hour, we need to convert the distance traveled from centimeters to miles and the time taken from seconds to hours.
First, let's convert the distance from centimeters to miles. We know that 1 mile is equal to 160,934 centimeters.
The bug traveled 72 cm, so the distance in miles would be:
72 cm * (1 mile / 160,934 cm) = 0.000446429 mile
Next, let's convert the time from seconds to hours. There are 60 minutes in an hour and 60 seconds in a minute, so there are 60 * 60 = 3600 seconds in an hour.
The bug took 7.5 seconds to travel, so the time in hours would be:
7.5 seconds * (1 hour / 3600 seconds) = 0.00208333 hour
Now, we can calculate the bug's speed in miles per hour by dividing the distance in miles by the time in hours:
Speed = Distance / Time
Speed = 0.000446429 mile / 0.00208333 hour ≈ 0.2147 miles per hour
Therefore, the bug's speed is approximately 0.2147 miles per hour.
The easy way to convert 1 cm/sec is to use google.
Then 72.0/7.5 = 9.6 cm/s and
9.6 cm/s x (google factor) = miles/hour