A fire hose held near the ground shoots water at a speed of 7.5 m/s

Question

Question

At what angle(s) should the nozzle point in order that the water would land 2.5 m away?
(a) Smaller Angle
(b) Larger Angle

Answer 1

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Answer #1

Given

Speed v = 7.5 m/s

Range R = 2.5 m

R = v²sin2θ/g

sin2θ = Rg/v²= 0.43555

2θ = 25.82^o

θ = 12.91^o

Larger angle = 90 - θ = 77.09^o

answered by: gama

Answer 2

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