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Momentum. Sir Isaac Newton Solid object in motion possesses a quality Determined by object’s mass and velocity Affects collisions with another object. Momentum. F = ma V = V o + at F = ρ Q (V 2 – V 1 )
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Momentum • Sir Isaac Newton • Solid object in motion possesses a quality • Determined by object’s mass and velocity • Affects collisions with another object
Momentum • F = ma • V = Vo + at • F = ρ Q (V2 – V1) • Force & velocity are vectors: must act in the same direction. Establish reference directions
Momentum • Requires force to change direction and/or velocity of a fluid
Calculations • Bernoulli Equation • V12 = Vn2 – 2gh • F =ρ Q V1( 1 – Cos )
Data • Nozzle diameter • Target • Height of target above nozzle • Flow rate • Weight - force
Results • V1 • Convert Q from gpm • Momentum - ρQ V1 • Slope of F vs ρQ V1 • Plot slopes of four conditions
Conclusions • Compare experimental slopes to theoretical slopes • Plane target – 1.0 • Concave (135o) target – 1.7071 • 45o target – 0.2929