2007-08-28 15:49:22 · 4 answers · asked by OMG. 2 in Science & Mathematics ➔ Physics
very carefully, and one step at a time
1 mile=5280 feet and 1 ft =.3048 m
1 hour= 3600 seconds.
I doubt if you have time^2 terms. Check it over.
If you so, you have to square 3600.
2007-08-28 15:54:57 · answer #1 · answered by cattbarf 7 · 0⤊ 0⤋
good old unit conversion...
85 mi/hr^2 --> m/s^2...
85 mi/hr^2 * (1hr/3600s)^2 *(1609m/1mi)...
so in principle, you just treat units like algebraic objects and choose conversions that allow you to cancel them down to the units you want...
it gets really bad when you're using non-standard units like slugs...
2007-08-28 15:56:42 · answer #2 · answered by Nick S 5 · 0⤊ 0⤋
acceleration of 85 miles per hr per hr
convert to meters/sec per sec
miles = 5280 ft x 12 in/ft x 2.54 cm/in x 0.01 m/cm = 1609.3 meters
hrs = 60 min/hr x 60 sec/hr = 3600 sec
85 mi/hr^2 x 1609.3 meters/mile / (3600 sec/hr x 3600 sec/hr)=0.01506
2007-08-28 15:59:41 · answer #3 · answered by skipper 7 · 0⤊ 0⤋
type it in google like this
85 mi per hour squared in meters per second squared
you get
0.0105551111 meters per (second squared)
2007-08-28 15:53:10 · answer #4 · answered by Spelunking Spork 4 · 0⤊ 0⤋