2.2 m 1.6 m +2.8 m→| 0.3 m

Q: 15–125. Water is discharged from a nozzle with a velocity of 12 m/s and strikes the blade mounted on…

A: In order to proceed with the problem some assumptions need to be taken into consideration. The cart…

Q: In Prob. 14.6, determine the work done by the woman and by the man as each dives from the boat,…

A: Write the given information.

Q: A new design of Saturn 11 rocket with mass 1.89 x106 kg has a propulsion engine that can eject gases…

A: mass of the rocket mr=1.89×106Kg relative speed of gas Urelative= 362.21m/sburning fuel rate, dmdT=…

Q: What do you notice about the total momentum before and the total momentum after? Which principle are…

A: (a) By analysing above data, we can say that total initial momentum is equal to total final…

Q: A toy car is propelled by water that squirts from an internal tank. The weight of the empty car is…

A: Given data

Q: Determine the linear momentum of a person whose mass is 80 kg and who is running at a rate of 3 m/s.…

A: Solution   Linear momantum of  a person       L = mv         = 80 x 3         = 240 kg m /s

Q: The total drag due to air friction on a jet airplane traveling at 900 km/h is 35 kN. Knowing that…

A: According to the problem, the speed of the airplane is 900 km/h. Calculate the value of the speed of…

Q: The weight of a spacecraft, including fuel, is 11,600 lb when the rocket engines are fired to…

A: Given Weight of the space craft = 11600 lb Velocity increase = 360 ft/s Consumed fuel = 1000 lb To…

Q: A cart is moving at a constant absolute velocity V-›cart = 3 km/h to the right. A high-speed jet of…

A: Given: The absolute velocity of the cart is Vcart=3 km/h The absolute velocity of the jet of water…

Q: Consider an airplane with a jet engine attached to the tail section that expels combustion gases at…

A:

Q: In order to shorten the distance required for landing, a jet airplane is equipped with movable vanes…

A: Given data

Q: A constant force P is applied to a piston and rod of total mass m to make them move in a cylinder…

A: Consider the FBD of the given piston rod, The equation of motion can be given as,

Q: Determine the altitude reached by the spacecraft of Prob. 14.95 when all the fuel of its launching…

A: Total mass is written as, The rate of fuel consumption is given as, The time is taken by rocket to…

Q: (a) If the projectile is launched into a vacuum, what is the speed of the projectile as it leaves…

A:

Q: While cruising in level flight at a speed of 570 mi/h, a jet airplane scoops in air at a rate of 240…

A:

Q: The m-mass steel bullet was fired at a speed of 700 m/s towards the plate and separated from the…

A: Consider the diagrams shown below for the given figure. The time for the impulse transfer can be…

Q: Water accelerated by a nozzle to 35 m/s strikes the vertical back surface of a cart moving…

A:

Q: A 540-kg spacecraft is mounted on top of a rocket with a mass of 19 Mg, including 17.8 Mg of fuel.…

A: Given Spacecraft mass = 540 kg Mass of the rocket = 19 Mg Mass of the fuel = 17 Mg Fuel consumption…

Q: A baseball player catching a ball can soften the impact by pulling his hand back. Assuming that a 10…

A: Write the given data. m=10×10-3 lbmv1=30 ft/sv2=0  (due to stop)

Q: An airline employee tosses two suitcases with weights of 30 lb and 40 lb, respectively, onto a 50-lb…

A: Given data as per the question weight of baggage carrier =50 lb weight of suitcases =30 lb and 40 lb…

Q: A circular reentrant orifice (also called Borda’s mouthpiece) of diameter D is placed at a depth h…

A: Consider the diagram shown below for the flow.

Q: The valve of a cylinder containing 15 kg of compressed gas is opened and the cylinder empties in…

A:

Q: A rocket weighs 2600 lb, including 2200 lb of fuel, which is consumed at the rate of 25 lb/s and…

A: Given, Weight of Rocket WR = 2600 lb Weight of Fuel WF = 2200 lb Rate of fuel combustion dW/dt = 25…

Q: The main propulsion system of a space shuttle consists of three identical rocket engines, each of…

A: Given   Flow rate is given bydwdt=750 lb/sv=12000 ft/sThus we have the…

Q: (1) During a rockburst (violent rock failure underground), a rock block was ejected as a projectile…

A:

Q: 2. Consider an airplane with a jet engine attached to the tail section that expels combustion gases…

A: Given Data Mass flow rate of combustion gases is : m˙=18 kg/s Velocity of gases is : V=300 m/s…

Q: The Milkin Aircraft Co. manufactures a turbojet engine that is placed in a plane having a weight of…

A: Given data: Aircraft weight, W=13000 lbEngine thrust, T=5200 lbTakeoff speed, V=600 mileshr

Q: It takes 15s to raise a 1200-kg car and the supporting 300-kg hydraulic car-lift platform to a…

A: To find (a) The average mechanical power required P. (b) The average electrical power required P'.…

Q: Reservoir A supplies water to a nozzle having diameter of 80 mm which discharge water 40 m below the…

A:

Q: impulse reaction turbine has its driving force A. as an impulsive force B. as a reaction force C.…

A: Option c is correct.

Q: A 100-ft3 /s wáter jet hits a horizontally lying stationary splitter, such that half of the mass…

A: Since there is no frictional loss on the splitter, the incoming velocity of the jet must be equal to…

Q: The rocket engines of a spacecraft are fired to increase its velocity by 450 ft/s. Knowing that 1200…

A:

Q: A 2 kg ring is attached to a spring of 3 m length that is not elongated. The ring is immobile from…

A: Given, The mass of the ring, m=2 kg Length of the unstretched spring, l=3 m (i.e when the ring is at…

Q: A launch vehicle has 6 engines operating in parallel which are fed from the same propellant tank.…

A: Write the given data. m˙=400 kg/sv=3500 m/s

Q: arry 300 kg of fuel and are capable of consuming it at a rate of 50 kg/s and eject it with a…

A: Write the equation for mass of the rocket. m=M+m0-qt Here, the rate of mass is q, the total mass of…

Q: A stream of water flowing at a rate of 1.2 m3/min and moving with a speed of 30 m/s at both A and B…

A: Given data Q=1.2 m3/minV=30 m/sm=20 kg

Q: A 180-lb man and a 120-lb woman stand at opposite ends of a 300-lb boat, ready to dive, each with a…

A: Given Data The weight of the man, Wm=180 lb The weight of the woman, Ww=120lb The weight of the…

Q: pile-driver of mass 500 kg falls freely through a height of 1.5 m on to a pile of mass 200 kg.…

A: We have to determine  (a) the common velocity immediately after impact, (b) the average resistance…

Q: Consider an airplane with a jet engine attached to the tail section that expels combustion gases at…

A: Given Data Mass flow rate is: m˙=18 kg/s Velocity is: V=300 m/s Angle is: θ=120° (i) Thrust and…

Q: It takes 15 s to raise a 1200-kg car and the supporting 300-kg hydraulic car-lift platform to a…

A: Given:Mass of the car, mc=1200 kgMass of the lift, mL=300 kgLift Height, s=2.8 mTime taken, t=15 sec

Q: The wind turbine generator shown has an output-power rating of 1.5 MW for a wind speed of 36 km/h.…

A: 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.