A fire fighter is trying to shoot water straight to the window located at the second floor of a
house 6 m above the ground. The distance between the fire fighter and the house is 8 m and he
holds the fire hose 1.8 m above the ground. The water leaves the hose with a constant speed of
12.5 m/s. Initially, the fire fighter aims the hose at 53 ̊above the horizontal and misses the
window. (we can assume that the hose and the window are in the same vertical plane)
a. How much time it will take for the water flow to reach the house?
b. How far above the window does the water go?
c. What is the magnitude of the velocity of water when it strikes the house?
d. What must be the minimum angle and speed of the flow in order to get water
right into the window?

  1. 👍 0
  2. 👎 0
  3. 👁 387
  1. Help

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    (a) Calculate the absolute pressure at the bottom of a fresh-water lake at a depth of 23.2 m. Assume the density of the water is 1.00 103 kg/m3 and the air above is at a pressure of 101.3 kPa. Pa (b) What force is exerted by the

  2. physics

    what is the effect on the speed of a fighter plane chasing another when it opens fire?what happens to the speed of pursuid plan when it returns the fire?

  3. Physics

    A brush fire is burning on a rock ledge on one side of a ravine that is 20 m wide. A fire truck sits on the opposite side of the ravine at an elevation 6.5 m above the burning brush. The fire hose nozzle is aimed 35∘ above

  4. math

    a fire fighter's 36 foot ladder leans against a building. the top of the ladder touches the buliding 28 ft above the ground. what is the measure of the angle of the ladder forms with the ground?

  1. Physics

    A ball is thrown straight up in the air and passes a window 0.30s after being released. It takes 1.5s to go from the window to its maximum height and back down to the window. What was the initial velocity of the ball when it was

  2. physics

    A fire engine must lift 30 kg of water a vertical distance of 20 m each second. What is the amount of power needed for the water pump for this fire hose? P=W/t=Fd/t=mgd/t (30)(9.8)(20)/1= 5880 W is that right?

  3. physics

    A fire hose ejects a stream of water at an angle of 35.0º above the horizontal. The water leaves the nozzle with a speed of 25.0 m/s. Assuming that the water behaves like a projectile, how far from a building should the fire hose

  4. Math

    A Norman window has the shape of a rectangle surmounted by a semicircle. If the perimeter of the window is 26 ft, express the area A of the window as a function of the width x of the window.

  1. physics

    A ball thrown straight up from the ground passes a window 5.6 m up. An observer looking out the window sees the ball pass the window again, going down, 3.4s later. Find the velocity with which the ball was initially thrown.

  2. math

    a student is painting one wall of a room. a square window is located in the middle of the wall to be painted. the window measures 3 feet on one side. the area of the wall, not including the window, is 80ft squared. find the height

  3. physics

    A ball is thrown straight up from ground level. It passes a 2-m-high window. The bottom of the window is 7.5 m off the ground. The time that elapses from when the ball passes the bottom of the window on the way up, to when it

  4. Math

    On a site plan for a new house, a water main runs along the edge of the property straight from point W(10, 34) to point M(2, 2). The water service will enter the house at point H(24, 22). The grid intervals on the plan represent

You can view more similar questions or ask a new question.