A car has a mass of 1700 kg, a drag coefficient of 0.35, a rolling resistance coefficient of 0.01, a frontal area of 2 m2, and a horsepower of 150. What is the minimum time required for the car to go from 0 to 60 mph? What is the minimum time if the car has 300 horsepower, with all else the same? Use a density of air of 1.2 kg/m3, and g = 9.8 m/s2. Assume the car is on a perfectly flat surface and assume that the wheels don't slip.

Q: A certain car has a drag coefficient of 0.32. If you look at it from the front, the car’s cross…

A: Expression for power -  P=Fv Where,  F = Force  Expression for force in terms of density and…

Q: How much work (energy) is required to lift a 227 g object by a height of 52.0 feet? The earth's…

A: Mass of the object m=227 g=227×10-3 kg The height at which the object is to be lifted h=52…

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Q: A very light spring with spring constant K = 500 N/m is hung (es) by a fixed ceiling. Two forces F,…

A: Given, Spring constant, k = 500 Nmforces, F1 = F2 = 20 N

Q: Fapp = 120 N m = 30.0 kg f = 5.00 N d = 0.800 m

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Q: 40. A 1500 kg car accelerates from 0 to 25 m/s in 7.0 s. What is the average power delivered by the…

A: here we have to apply work energy theorem

Q: Noel is playing on a swing and has a weight of 60.0Newtons. Approximately, what is his maximum speed…

A: weight of noel = 60 N initial height = 0.5 m final height = 3 m

Q: A chauffeur driving a 1200-kg car increases her speed from 30 m/s to 40 m/s in 5 s. Determine the…

A: Power is defined as the work done per unit time: P = work donetime The work done to increase the…

Q: per meter and spring B has a spring constant of potential energy stored in spring A, the elastic 280…

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Q: A transport truck driving at a constant speed of 83.7 km/hr on a flat stretch of highway must…

A: Given,  Speed of truck, v = 83.7 km/h Force required to overcome friction, F = 2,893 N Power…

Q: Thanks!!

A: Basic Details According to the conservation of energy, the energy of the spring would be converted…

Q: p. add the values together to get the total energy. don't forget to label the units

A: We know that the formula of the gravitational potential energy is given as  GPE = mgh  where m is…

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A: Answering Question 1: Write the expression for potential energy of spring. P.E=12kx2…

Q: A lawn roller is pushed 15 meters by a force of 100 N. If the person has used 85 W, how long did it…

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Q: You decide to climb the stairs on the three floors of NIATE. Let your mass be 72.2 kg, your total…

A: Given data:  Mass (m) = 72.2 kg Height (h) = 10.0 m Time (t) = 5 minutes g = 10.0 m/s2 Required: The…

Q: 2. A 3.0 kg particle is pushed with a force given below. If its speed at x = 2 m is 1.70 m/s what is…

A: work done between x=2 m to x =4m can be simply found by finding the area of given graph between…

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A: Elastic potential energy of the spring is

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Q: A stone of mass 80 g is dropped onto an unstrained vertical spring with a spring constant k = 0.8…

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Q: A transport truck driving at a constant speed of 87 km/hr on a flat stretch of highway must produce…

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Q: A girl and her bicycle have a total mass of 40 kg. At the top of a hill, that is 10 m high and 100 m…

A: Total mass is 40 kg. At the top of a hill of 10 m high and 100 m long, her speed is 5 m/s. The…

Q: Calculate the power output in watts and horsepower of a shot-putter who takes 1.10 s to accelerate…

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Q: Calculate the power output in watts and horsepower of a shot-putter who takes 1.10 s to accelerate…

A: Total change in energy of the shot = Change in kinetic energy + Change in potential energy  1 hp =…

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Q: Resistance to the motion of an automobile consists of road friction, which is almost independent of…

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Q: Each second 1080 m of water passes over a waterfall 103 m high. Three-fourths of the kinetic energy…

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Q: While driving, you notice that your 1150 kg car slows down from 70 mph to 45 mph in about 4.85 s…

A: Mass of the car is m = 1150 kg Initial velocity of the car is u = 70 mph Final velocity of the car…

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

A: It is given that,

Q: If 10.00 hp are required to drive a 2,000-kg automobile at 80 km/h on a level road, what is the…

A: Given :  Power, P = 10.00 hp  mass, m = 2000 Kg  Velocity, v = 80 Km/h  Find : Total retarding force…

Q: A chauffeur driving a 1200-kg car increases her speed from 30 m/s to 40 m/s in 5 s. Determine the…

A: The rate of doing work is called work done. According to the work energy theorem, the work done is…

Q: A 20 horsepower engine is used to lift  gravel from the ground to the top of a building 60 ft high.…

A:

Q: a bullet with the mass 5kg is fired horizontally into a 2kg block attached to a horizontal spring.…

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Q: 1300-kg car is to accelerate from rest to a speed of 30 m/s in a time of 12.0 s as it climbs a 15.0…

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Q: A pitcher supplies a power of P = 226 W to a baseball of mass m = 0.085 kg for a period of t = 0.28…

A: Given value--- power = 226 W. mass = 0.085 kg. time = 0.28 sec. We have to find--- What is the…

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…

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Q: A roller coaster cart of mass m = 241 kg starts stationary at point A, where h1 = 39.4 m and a while…

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Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.