12-91. The fireman holds the hose at an angle 0 = 30° with horizontal, and the water is discharged from the hose at A with a speed of va = 40ft/s. If the water stream strikes the building at B, determine his two possible distances s from the building.

Q: 15-135. A power lawn mower hovers very close over the ground. This is done by drawing air in at a…

A: Given, Va = 6 m/s AA = 0.25 m2 AB = 0.35 m 2 m = 15 kg ρa = 1.22 kg/m 3 Rate of air flow to the lawn…

Q: 15–118. The blade divides the jet of water having a diameter of 4 in. If one-half of the water flows…

A:

Q: 13-30. The force of the motor M on the cable is shown in the graph. Determine the velocity of the…

A: Step 1 Given data *The mass of the crate is m = 400 kg *The time is t = 2 s *The force is F = 625t2

Q: projectile is fired with a speed of 1,000 ft/s at a height of 500 ft. Determine the elevation angle…

A:

Q: Q14. The man M weighs 750 N and jumps onto the boat B which is originally at rest. If he has a…

A:

Q: The water sprinkler, positioned at the base of the hill, releases a stream of water with a velocity…

A:

Q: A pump is located near the edge of the horizontal platform shown. The nozzle at A discharges water…

A:

Q: If the ball has a mass of 40 kg and a speed of 5 m/s at the instant it is at the lowest point (θ…

A:

Q: Q2 Determine the magnitude of initial velocity VA of the basketball and the final velocity VB when…

A: Angle = 60o

Q: The water sprinkler, positioned at the base of a hill, releases a stream of water with a velocity vo…

A: Given: angle = 60 deg initial velocity = 4.5 m/s curvature equation y =kx2 point of intersection is…

Q: The drinking fountain is designed such that the nozzle is located from the edge of the basin as…

A:

Q: R12-3. A projectile, initially at the origin, moves along a straight-line path through a fluid…

A: Rate of change of displacement of object is known as velocity. Velocity is vector quantity.

Q: 15-5. A hockey puck is traveling to the left with a velocity of e = 10 m/s when it is struck by a…

A: Given data: Initial Velocity, v1 = 10 m/s Final Velocity, v2 = 20 m/s Mass, m = 0.2 kg The…

Q: 15-37. The 2.5-Mg pickup truck is towing the 1.5-Mg car using a cable as shown. If the car is…

A: Write the equation for the principle of conservation of linear momentum along the x-direction.…

Q: The 10-kg ball has a velocity of 3 m/s when it is at A, along the vertical path. Find the tension in…

A:

Q: 14-50. Determine the power output of the draw-works motor M necessary to lift the 600-lb drill pipe…

A: Given: The weight of the drill pipe is W=600 lb. The velocity of the drill pipe is VP=4 ft/s.

Q: 15-126. A snowblower having a scoop S with a cross- sectional area of A,=0.12 m³ is pushed into snow…

A: Understand the give machine for the direction of the force F and Force P.

Q: . The fireman wishes to direct the flow of water from his hose to the fire at B. Determine two…

A: Solution - We are given a fireman wishes to direct the flow of water from his hose to the fire at…

Q: *15–124. The boat has a mass of 180 kg and is traveling forward on a river with a constant velocity…

A: Given that, Mass of the boat, m=180 kg,Velocity of boat, vb=70 kmhVelcoity of river, vr=5 kmhMass…

Q: S00 km/h a- 700 km /h

A: The relative velocity between any two reference points is the velocity with which one reference…

Q: Determine the speed at which the basketball at A must be thrown at the angle of 30° so that it makes…

A:

Q: A particle moves along the curve y = x - (x²/325), where x and y are in ft. If the velocity…

A: Case 1 Given Curve equation y = x – (x2/325) Vx = 3 ft/s X = 15 ft To find Velocity Acceleration…

Q: 15-25. The balloon has a total mass of 400 kg incl the passengers and ballast. The balloon is rising…

A:

Q: The ball is thrown off the top of the 40-ft tall building. If the initial velocity VA is 60 ft/s and…

A:

Q: Q/. At the instant shown, the man is twirling a hose over his head with an angular velocity = 2…

A:

Q: 15-114. The fire boat discharges two streams of seawater, each at a flow of 0.25 m²/s and with a…

A: Given data: The discharge of each stream is Q = 0.25 m3/s. The nozzle velocity is v = 50 m/s. The…

Q: A sandblaster at A directs the flow of sand from his hose to the fire at B. If 6 = 0, what is the…

A:

Q: R13-5. The ball has a mass of 30 kg and a speed v = 4 m/s at the instant it is at its lowest point,…

A:

Q: The water sprinkler, positioned at the base of the hill, releases a stream of water with a velocity…

A: Given: The velocity of waterv=25fts The angle of inclination θ=50° The equation of hill y=0.09x4

Q: K I velocity 2 = 30 the Vo -R * x was projectte launched with range No = 20m/s, determine sto to =…

A:

Q: The water sprinkler, positioned at the base of the hill, releases a stream of water with a velocity…

A: Given: Here are the given data, The velocity of water, v=25fts The angle of inclination, θ=50° The…

Q: 12-213. If the hydraulic cylinder H draws in rod BC at 2 ft/s, determine the speed of slider A. A Н…

A: Draw diagram of moving pulleys for better understanding Length of cable can be expressed as Time…

Q: Water is the working fluid in an ideal regenerative Rankine cycle with one open feedwater heater.…

A: Solution:

Q: 15-145. The 10-Mg helicopter carrics a bucket containing 500 kg of water, which is used to fight…

A: Given Data The mass of the helicopter, M = 10Mg The mass of the water, Mw = 500Kg The velocity of…

Q: If the end of the cable at A is pulled down with a speed of 5.15 ft/s, determine the speed at which…

A: Given data: Velocity of block A, vA = 5.15 ft/s. Draw a labeled diagram of the given pulley…

Q: *15-136. The rocket car has a mass of 2 Mg (empty) and carries 120 kg of fuel. If the fuel is…

A: Given: The mass of the car is m’=2 Mg. The mass of the fuel is mf=120 kg. The flow rate of the fuel…

Q: 12-88. Neglecting the size of the ball, determine the magnitude VA of the basketball's initial…

A:

Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.