- #1
KpAtch3s
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I'm trying to figure out how much force is required to move a 300/350lb object across the top of water and maintain a certain velocity. My goal is to do a minimum of 20mph but depending on the size of the engine and weight considerations 30-35mph would be ideal.
From some of my research I realized water has 3 different drag coefficients until you are planing on the waters surface.
300lbs and 30mph converted and if I've applied f=ma right then:
f=136.078kgx13.4112m/s^2
f=136.078x179.860
f=24474.98908N
converted to 5502.196lbs of force required to accelerate to 30mph. This doesn't take into account drag created by water. I would say that obviously that much force is not required to maintain that velocity. So I suppose the question should be, how much force is required to maintain 30mph in a fluid environment?
From some of my research I realized water has 3 different drag coefficients until you are planing on the waters surface.
300lbs and 30mph converted and if I've applied f=ma right then:
f=136.078kgx13.4112m/s^2
f=136.078x179.860
f=24474.98908N
converted to 5502.196lbs of force required to accelerate to 30mph. This doesn't take into account drag created by water. I would say that obviously that much force is not required to maintain that velocity. So I suppose the question should be, how much force is required to maintain 30mph in a fluid environment?