A speed boat requires 85.0 kW to move at a constant speed of 14.0 m/s. What is the resistive force of the water at this speed?

Q: How much work must you do to push a 12 kg block of steel across a steel table at a steady speed of…

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Q: A student weighing 551 N climbs at constant speed to the top of an 14 m vertical rope in 17 s. What…

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Q: 2. What is the mass of a truck if its kinetic energy is 5500 J and travels at a speed of 65 km/h. 65…

A: Given. Mass = m velocity = 65 km/h V = 65*1000/3600 m/s. V = 18.055 mps.

Q: Which has more kinetic energy: a 0.0012 kg bullet traveling at 405 m/s or a 5.3 x 10^7 kg ocean…

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Q: An electric engine in a 2.0 kg remote-control toy car has a power output of 4.0 W. How fast will it…

A: Energy = Power * time P=power = 4 W time=t=5 s   Energy=E= 4*5=20   mass=m=2.0 kg

Q: A driving force of 200 N is needed for a car of mass 800 kg to travel along a level road at a speed…

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Q: What is the shortest possible time for a forklift with a 2¾ horsepower lifting motor to raise a…

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Q: A 150 g particle at x = 0 is moving at 2.00 m/s in the +x-direction. As it moves, it experiences a…

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Q: 300 J of work are required to fully drive a stake into the ground. If the average resistive force on…

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Q: A 450 kg dragster accelerates from rest to a final speed of 120 m/s in 400 m (about a quarter of a…

A: mass of dragster = 450 kg Initial velocity = 0 m/s final velocity = 120 m/s distance moved = 400 m…

Q: What mass can a 30 kW engine pull along a level road at 15 m's if the coefficient of friction…

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Q: A 1700 kg car coasts on a horizontal road with a speed of 23 m/s. a) How much work must be done by…

A: Given data: Mass (m) = 1700 kg Initial velocity (v0) = 23 m/s Final velocity (vf) = 17 m/s Required:…

Q: A 150 N force acting along an incline is pushing a 6.50 kg object 4.65 m up a 20.0 degree incline.…

A: Analyze the free body diagram. Consider the rightward direction along the incline plane to be…

Q: A runner exerts a force of 334 N against the ground while running a distance of 50.Om. The runner's…

A: Force exerted, F = 334 N Distance walked, s = 50 m Power, P = 3.71 kW = 3710 W   Work done by the…

Q: A 710 kg car is moving on level ground at a constant speed of 23 m/s. It is subject to a drag force…

A: Given data:  Force (F) = 500 N Speed (v) = 23 m/s Required: The power (P)

Q: A 56.5-kg person is running and accelerates from 3.67 m/s to 8.29 m/s in 5.67 s. How much power does…

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Q: The kinetic energy of a motorcycle and rider is 59,600 J. If their total mass is 322 kg, what is…

A: Given data The kinetic energy of the motorcycle is given as KE = 59600 J. The mass of both the…

Q: What minimum speed does a 100 g puck need to make it to the top of a frictionless ramp that is 3.0 m…

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Q: A 1300-kg car moving on a horizontal surface has speed y = 50 km/h when it strikes a horizontal…

A: The kinetic energy will equal to the elastic potential energy. mv22=kx22

Q: Water flows over a section of Niagara Falls at a rate of 1.4 × 106 kg/s and falls 60 m. What is the…

A: Given: The rate of mass of the water=dmdt=1.4×106 kg/s. The height of the fall=h=60 m Acceleration…

Q: A 900-kg car cruising at a constant speed of 60 km/h is to accelerate to 100 km/h in 4 s. The…

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Q: What is the average power must produce to accelerate car with 1500 kg from rest to the speed 30…

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Q: A warehouse worker uses a forklift to raise a crate of pickles on a platform to a height 3.75 m…

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Q: A 5.0 kg object is moving at 3 m/s? By what factor does its kinetic energy change if its mass is…

A: Write the given values with the suitable variables. m1=5 kgv=3 m/sm2=m12=5 kg2=2.5 kg Here, m1, v,…

Q: A motorbike engine can develop a power of 90 kW in order to keep a constant velocity of 30 m/s. What…

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Q: An electric engine in a 2.0 kg remote-control toy car has a power output of 4.0 W. How fast will it…

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Q: A kayaker paddles with a power output of35.0 W to maintain a steady speed of 2.24 m>s. (a)…

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Q: A 1000-kg car accelerates from 0 to 15 m/s in 5.0 s with negligible friction and air resistance.…

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Q: A car's engine generates 80000 W of power as it exerts a force of 6000 N. How long does it take the…

A: Given, Power generates engine of the car, P = 80000 Wforcec exerted by engine, F = 6000 Ndistance…

Q: On a frozen pond, a 8.54-kg sled is given a kick that imparts to it an initial speed of…

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Q: If a car generates 15.6 hp when traveling at a steady 96.1 km/hr, what must be the average force…

A: Steady velocity or uniform velocity is the velocity of an object moving without any acceleration ,…

Q: On a frozen pond, a 8.54-kg sled is given a kick that imparts to it an initial speed of…

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Q: A 150 [g] particle at x = 0 is moving at 2.00 [m/s] in the +x-direction. As it moves, it experiences…

A: The expression for the work done, W=∫x1x2Fxdx   Substitute,…

Q: What is the average power must produce to accelerate car with 1500 kg from rest to the speed 30…

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Q: 12. A person runs up a long flight of stairs in 10 seconds. If the person’s weight is 600 N and the…

A: Given data The time taken by the person is t = 10 s. The person weight is W = 600 N. The vertical…

Q: The kinetic energy of a motorcycle and rider is 59,600 J. If their total mass is 286 kg, what is…

A: The kinetic energy of an object of mass 'm' and moving with a speed v is given as:K.E=12mv2 It is…

Q: A swimmer moves through the water at an average speed of 0.22 m/s. The average drag force is 110…

A: Given , velocity of the swimmer V  = 0.22 m/s Average drag force F = 110 N The swimmer has to do…

Q: A car generating a power of (93670.06)watts is traveling on a road with a coefficient of kinetic…

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Q: Consider a 1,499.74-kg car cruising at constant speed of 73.89 km/h. Now the car starts to pass…

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Q: What is her useful power output if she does 25 pushups in one minute?

A: It is given that,

Q: A 10,000 W motor operates an elevator weighing 5,000 N. Assuming no frictional losses, how high is…

A: Expression for power P=EPt=mght=Whth=PtW

Q: A woman uses a pulley and a rope to raise a 20 kg weight to a height of 2 m. If it takes 4 s to do…

A: mass, m = 20 kg  height, h = 2 m  time, t = 4s  The formula for energy is  E = m g h  The power is…

Q: Killer whales are known to reach 32 ft in length and have a mass of over 8,000 kg. They are also…

A: Given, Mass of Shamu(m)= 7.99*10³ kg Initial velocity of Shamu(vi)= 0 m/s Final velocity of…

Q: 8.58. A speedboat must develop 120 hp in order to move at a constant speed of 15 ft/s through the…

A: Given Power of speedboat is P=120 hp =89484 W Constant speed is v=4.572 m/s

Q: A car travels with a constant speed of 15 m/s. The car's engine produces a 4000N pushing force in…

A: Given Data:- Speed of the Carr is v=15 m/s Force produced by the engine of the car is F=4000 N…