|Sep5-10, 04:01 PM||#1|
Converting kinetic energy into BTUs?
1. The problem statement, all variables and given/known data
"A body whose mass is 2lb experiences an increase in velocity from 20 ft/s to 50 ft/s.
Determine the change in kinetic energy in BTUs"
2. Relevant equations
3. The attempt at a solution
As of right now I have [tex]\Delta[/tex]KE=2100 lb_m ft^2/s^2
I don't know how to change that into BTUs. I don't even know what BTUs are.
For example a joule is a kg*m/s^2, so what is a BTU in terms of pounds mass?
Thanks for any help
|Sep6-10, 03:09 AM||#2|
You could just try converting the 2 lb. mass into kg. and the two velocities given into m/s so that solving for the change in kinetic energy would be in Joules. Should be pretty easy to find those three conversion factors.
|Sep6-10, 07:37 AM||#3|
ok, yeah i guess i could do that.
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