How Do You Convert 65mph to ft/s and km/h?

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SUMMARY

The conversion of 65 miles per hour (mph) results in 95.33 feet per second (ft/s) and 104.60736 kilometers per hour (km/h). To perform this conversion, it is essential to know that there are 5280 feet in a mile and 3600 seconds in an hour. The formula used is 1 mph = 5280 ft/3600 s, which simplifies to 22/15 ft/s. Understanding significant figures is also important when reporting these conversions.

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  • Understanding of unit conversion principles
  • Knowledge of the relationship between miles, feet, and kilometers
  • Basic arithmetic operations
  • Familiarity with significant figures in measurements
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emma123
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i need some help on a problem... does anyone know how to convert 65mph into ft/s and km/h? i would appreciate it THANKS! =)
 
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I find it convenient to know that 60 mph=88 f/s,
and 50 mph=80 km/h.
 
emma123 said:
i need some help on a problem... does anyone know how to convert 65mph into ft/s and km/h? i would appreciate it THANKS! =)
First you need to know how many feet are in a mile.
I looked up that a foot is 1/3 of a yard and a mile is 1760 yards, so there are 3*1760=5280 feet in a mile (God, I hate these units)

Then you can just write:
1 [mile/hour] = 1 [5280 ft/3600 seconds]=5280/3600 ft/s=22/15 ft/s.

EDIT: There are 3600s in an hour. duh.
 
Last edited:
when i convert 65 mph into ft/s is it 95.33 ft/s and and when converting 65mph into km/h is it 104.60736 km/h?
 
emma123 said:
when i convert 65 mph into ft/s is it 95.33 ft/s and and when converting 65mph into km/h is it 104.60736 km/h?

is this correct?
 
emma123 said:
when i convert 65 mph into ft/s is it 95.33 ft/s and and when converting 65mph into km/h is it 104.60736 km/h?
You should learn about significant figures.
 

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