Estimate the speed in mph with which water comes out of a garden hose using your past observations of water coming out of garden hoses and your knowledge of projectile motion. (Take the inclination angle to be 45°, the initial height to be 1.0 m, and the range of the stream to be 4 m.)

1 answer

Range = Vo^2*sin(2A)/g = 4 m.
Vo^2*sin(90)/9.8 = 4.
0.102Vo^2 = 4.
Vo^2 = 39.2.
Vo = 6.3 m/s. * 1mi/1600m * 3600s/h =
14.1 mi/h.