ntal cross-sectional area of 20 ft2. The roadway has a straight alignment and a badly broken and patched asphalt surface
ntal cross-sectional area of 20 ft2. The roadway has a straight alignment and a badly broken and patched asphalt surface
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Estimate the horsepower required to accelerate a 2,500-lb vehicle traveling 30 mph up a 5% grade at the rate of 6 ft/sec². The vehicle has a frontal cross-sectional area of 20 ft2. The roadway has a straight alignment and a badly broken and patched asphalt surface Assume the drag coefficient = 0.3 and a rolling resistance =34
Use the following:
(a) Inertia resistance, F, =? (compute)
(b) Grade resistance, F =? (compute)
(c) Rolling resistance, F, = 34 lb
(d) Curve resistance, F = 0
(e) Air resistance; Use the formula :F= 0.0006AV²
(f) Horsepower
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