Suppose the water at the top of Niagara Falls has a horizontal speed of 1.81 m/s just before it cascades over the edge of the falls. At what vertical distance below the edge does the velocity vector of the water point downward at a 47.8 ° angle below the horizontal?
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Suppose the water at the top of Niagara Falls has a horizontal speed of 1.81 m/s just before it cascades over the edge of the falls. At what vertical distance below the edge does the velocity vector of the water point downward at a 47.8 ° angle below the horizontal?
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- Water from a fire hose is directed toward a building. The water leaves the hose at a speed of vi = 40.0 m/s and at an angle of Øi = 35.0° above the horizontal. The base of the hose (at ground level) is a horizontal distance d= 51.0 m away from the building. Find the height h (in m) where the water strikes the building.Water from a fire hose is directed toward a building as shown in the figure below. The water leaves the hose at a speed of v₁ = 40.0 m/s and at an angle of 0; = 35.0° above the horizontal. The base of the hose (at ground level) is a horizontal distance d = 45.0 m away from the building. Find the height h (in m) where the water strikes the building.Water from a fire hose is directed toward a building as shown in the figure below. The water leaves the hose at a speed of vi = 40.0 m/s and at an angle of θi = 43.0° above the horizontal. The base of the hose (at ground level) is a horizontal distance d = 56.0 m away from the building. Find the height h (in m) where the water strikes the building.
- Water from a fire hose is directed toward a building as shown in the figure below. The water leaves the hose at a speed of vi = 40.0 m/s and at an angle of θi = 44.0° above the horizontal. The base of the hose (at ground level) is a horizontal distance d = 45.0 m away from the building. Find the height h (in m) where the water strikes the building. A fireman on the ground sprays water from a fire hose onto a building. The water leaves the hose with velocity vector vi at an acute angle θi above the horizontal and curves downwards just before it strikes the building at a height h above the ground. The building is a horizontal distance d from the fireman.Problem 3: Water leaves a fireman’s hose (held near the ground) with an initial velocity v0 = 16 m/s at an angle θ = 31.5° above horizontal. Assume the water acts as a projectile that moves without air resistance. Use a Cartesian coordinate system with the origin at the hose nozzle position, as shown. Part (b) At what horizontal distance d from the building base, where should the fireman place the hose for the water to reach its maximum height as it strikes the building? Express this distance, d, in terms of v0, θ, and g.Firemen use a high-pressure hose to shoot a stream of water at a burning building. The water has a speed of 25.0 m>s as it leaves the end of the hose and then exhibits projectile motion. The firemen adjust the angle of elevation a of the hose until the water takes 3.00 s to reach a building 45.0 m away. Ignore air resistance; assume that the end of the hose is at ground level. (a) Find a. (b) Find the speed and acceleration of the water at the highest point in its trajectory. (c) How high above the ground does the water strike the building, and how fast is it moving just before it hits the building?
- Water from a fire hose is directed toward a building as shown in the figure below. The water leaves the hose at a speed of v, = 40.0 m/s and at an angle of e, = 35.0° above the horizontal. The base of the hose (at ground level) is a horizontal distance d = 45.0 m away from the building. Find the height h (in m) where the water strikes the building. A fireman on the ground sprays water from a fire hose onto a building. The water leaves the hose with velocity vector v, at an acute angle 0, above the horizontal and curves downwards just before it strikes the building at a height h above the ground. The building is a horizontal distance d from the fireman.Water from a fire hose is directed toward a building as shown in the figure below. The water leaves the hose at a speed of vi = 40.0 m/s and at an angle of ?i = 35.0° above the horizontal. The base of the hose (at ground level) is a horizontal distance d = 51.0 m away from the building. Find the height h (in m) where the water strikes the building.A diver springs upward from a board that is 3.00 m above the water. At the instant she contacts the water her speed is 10.5 m/s and her body makes an angle of 81.3 ° with respect to the horizontal surface of the water. Determine her initial velocity, both (a) magnitude and (b)direction.
- Water from a fire hose is directed toward a building as shown in the figure below. The water leaves the hose at a speed of v, = 40.0 m/s and at an angle of e, = 31.0° above the horizontal. The base of the hose (at ground level) is a horizontal distance d = 65.0 m away from the building. Find the height h (in m) where the water strikes the building. Need Help? Read ItFirefighters use a high-pressure hose to shoot a stream of water at a burning building. The water has a speed of 25.0 m/s as it leaves the end of the hose and then exhibits projectile motion. The firefighters adjust the angle of elevation a of the hose until the water takes 3.00 s to reach a building 45.0 m away. Ignore air resistance; assume that the end of the hose is at ground level. (a) Find a. (b) Find the speed and acceleration of the water at the highest point in its trajectory. (c) How high above the ground does the water strike the building, and how fast is it moving just before it hits the building?Firemen are shooting a stream of water at a burning building using a high-pressure hose that shoots out the water with a speed of 25.0 m/s as it leaves the end of the hose. Once it leaves the hose, the water moves in projectile motion. The firemen adjust the angle of elevation θ of the hose until the water takes 3.0 s to reach a building 45.0 m away. You can ignore air resistance; assume that the end of the hose is at ground level. (a) Find the angle of elevation θ. Hint Answer: θ = 53.1◦(b) Find the speed, v and acceleration a of the water at the highest point in its trajectory. (c) How high above the ground does the water strike the building, and how fast is it moving just before it hits the building? Hint Answer: y = 15.9 m and v = 17.7 m/s