- #1
Northbysouth
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- 2
Homework Statement
I'm not particularly confident with my calculations and I would appreciate any feed back.
A) What is the kinetic energy of an object with:
mass = 5lbm
velocity = 200 ft/sec
B) What is the potential energy of an object with:
mass = 5lbm
height = 200ft
g = 32.2 ft/sec2
C) What is the pressure difference between the top and bottom of a water column that is 15ft high and gravity is 32.2 ft/sec2
Homework Equations
KE = 1/2mv2/gc
PE = mgh/gc
The Attempt at a Solution
A)
KE = 1/2(5 lbm)(200 ft/sec)2/32.17 ft-lbm/lbf-sec2
KE = 3.11x103 lbf-ft
B)
PE = (5 lbm)(32.2 ft/sec2)(200ft)/32.17 ft-lbm/lbf-sec2
PE = 1001 lbf-ft
C) I'm not quite sure where to start with this one and I would appreciate an guidance.