12. Solve the following math problem by cancelling units. Be sure to include your units at the end 9 centimeters 2 seconds
x
1 inch 2.54 centimeters
x 60 seconds = 1 minute
_______
And by the way, 9 meters every 2 seconds is the same as ___ meters per second 13. Here’s a different one. Based on the math answer below, write the question that was asked. Example
Answer: 70 days x 1 week = 10 weeks 7 days
Question: How many weeks are there in 70 days?
Answer: 25.4 centimeters x 1 inch x 1 hour = hour 2.54 centimeters 3600 seconds Question:____________________________________________
.0028 inches second
14. What units would result from the following question? Example
centimeters day Answer: inches per hour
centimeters hour
x
x
inch centimeters
inches centimeters
x
day = __________ hour
x hour x seconds = __________ seconds millisecond
Answer: 15. The boxed example above converted from centimeters per day to inches per hour. Show how to convert from 1 mile per hour to meters per second (1609 meters = 1 mile; 60 seconds = 1 minute; 60 minutes = 1 hour) Show your work below:
Answer: 1 mile per hour is the same velocity as _____ meters per second. 26