what is 2.15x10^5 miles per hour squared converted to meters per second squared?
You can always multiply by 1 without changing the value. Just pick the units so "1" cancels unwanted units:
2.15*10^5 mi/hr^2 * 1609.34m/mi * (1hr/3600s)^2 = 26.7m/s^2
To convert 2.15x10^5 miles per hour squared to meters per second squared, you need to use the conversion factors between miles, hours, meters, and seconds.
First, let's convert miles to meters.
1 mile is equal to 1609.34 meters, so we can multiply 2.15x10^5 by 1609.34:
2.15x10^5 miles * 1609.34 meters/mile = 3.465x10^8 meters per hour squared
Next, let's convert hours to seconds.
1 hour is equal to 3600 seconds, so we can divide 3.465x10^8 meters per hour squared by 3600:
3.465x10^8 meters per hour squared / 3600 seconds/hour = 9.625x10^4 meters per second squared
Therefore, 2.15x10^5 miles per hour squared is equal to 9.625x10^4 meters per second squared.