A man in a sled, with a total mass of 125kg slides down a grassy hill and reaches a speed of 7 m/s at the bottom. If a pile of grass can exert a constant force of 225 newtons, how fast will the sled stop?

Q: You are using a 3 horsepower motor to lift a 45 kg package. How high can the package be lifted in 1…

A: The given data are: m=45 kgP=3 hp=2238 Wt=1 min=60 s Here, m denotes the mass, P denotes the power,…

Q: The only force acting on a 2.0-kg body moving along the x axis is given by Fx = 2x where force is…

A: Given : equation of force, Fx = 2x  mass of the body, m = 2.0 kg  Velocity at x = 0, vo = 3 m/s to…

Q: How much power is developed by an airplane that cruises at 300 m/s when the thrust of its engine is…

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Q: What is the velocity of a 5000 kg truck whose kinetic energy is 360 kJ? O 144 m/s O 43 m/s O 31 m/s…

A: Write the expression for the kinetic energy. Here, m represents the mass and v represents the…

Q: A body of 4.5 Kg is dropped from rest at a height of 10.5 m. What is the speed immediately before it…

A: Write the given values of the problem- Mass of the body(m) m=4.5 kg height(h) h=10.5 m

Q: A 5.2 x 105 kg subway train is brought to a stop from a speed of 0.95 m/s in 0.57 m by a large…

A: Given, The mass of the subway train = 5.2×105 kg =m  Initial velocity of the train = 0.95 m/s = Vi…

Q: A girl and her bicycle have a total mass of 42 kg. At the top of the hill her speed is 4.00 m/s. The…

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Q: How much energy is dissipated in braking a 1500-kg car to a stop from an initial speed of 15 m/s?

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Q: What is the work done on a 3 kg cart that accelerates from 5 m/s to 20 m/s. (A 22.5J (B 45J c)…

A: Given data:  Mass (m) = 3 kg Initial velocity (Vi) = 5 m/s Final velocity (Vf) = 20 m/s Required:…

Q: A force of 77 pounds is required to hold a spring stretched 0.3 feet beyond its natural length. How…

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Q: A 30.1 kg child on a sled slides down a hill, reaching a speed of 6.65 m/s. How high was the hill…

A: Given, Mass of child,m=30.1 kg Speed,v=6.65 m/s

Q: How many watts of power do you expend when you exert a force of 1 N that moves a book 2 m in a time…

A: The power exerted on the book can be given by

Q: A chimp climbs on to a wall that is 3.6m high and gains 2 268 J of potential energy. What is the…

A: Bartleby's guidelines allowing answer only the first question

Q: An automobile has a power output of 100 hp. When it pulls a cart with a force of 300N, what is the…

A: Answer:-  Given  Power (P) = 100 hp        (1hp = 746 watt)   P = 100 × 746 watt  P = 74600 watt…

Q: How large a force is required to accelerate a 1300 kg car from rest to a speed of 20 m/s in a…

A: How large a force is required to accelerate a 1300 kg car from rest to a speed of 20 m/s in a…

Q: A cart which has a mass of 20 kilograms slides down a frictionless slope of a hill. If the cart…

A: Given value--- mass = 20 kg. speed at bottom = 15.6 m/s. We have to find --- height?

Q: A particle of mass 2.5kg moves according to the equation x(t)=10t?, where x is in meters and t is in…

A: Given The mass of the particle is m = 2.5 kg. The equation for the distance is x(t) = 10t2. The…

Q: A student pushes a physics textbook of mass 1.11 kg across a table with a horizontal force of 5.81…

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Q: An automobile has a power output of 1 hp. When it pulls a cart with a force of 300N, what is the…

A: Let the force is denoted by F and the power is denoted by P.

Q: What is the velocity of a 4.8 x10 kg truck whose kinetic energy is 125 kJ?

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Q: A 62 kg trampoline artist jumps upward from the top of a platform with a vertical speed of 4.5 m/s.…

A: Say u is the velocity as the artist velocity as he lands on trampoline. At top as the artist jumps…

Q: What is the speed of a 14 kN body at rest then falling from a height of 238 m.

A: During free fall if the air resistance is neglected the final velocity of a body dropped from a…

Q: if you pull a wagon with a force of 200 Newton's and it takes you 20 seconds to pull it 10 meters of…

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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: Calculate the total kinetic energy, in Btu, of an object with a mass of 10 lbm when its velocity is…

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Q: What is the speed of a 400 kg race car with 2.0E6 J of kinetic energy?

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Q: A girl pushes her little brother on his sled with a force of 300 N and does work of 600 J. How far…

A: Given  Girl pushes his brother with the force F = 300 N. Work Done W = 600 J We know the expression…

Q: It takes 156 kJ of work to accelerate a car from 20.4 m/s to 28.2 m/s. What is the car's mass?

A: The mass of the car can be calculated in given steps:Given:

Q: A car of mass 2086 kg travelling at a speed of 21 m/s has the same kinetic energy as a 2985 kg…

A: Given mass of car m = 2086 kg speed of car v=21 m/s mass of truck M=2985 kg we know kinetic energy…

Q: A subcompact car with a mass of 1.10×103 kg and a loaded dump truck with a mass of 1.50×104 kg are…

A: Solution:- Given in the question, Mass of subcompact car = 1.10×10^3 kg Mass of loaded dump truck…

Q: What is the kinetic energy of a 1900 pound car travelling at 30 meters per second?

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Q: What is the kinetic energy of a 900 kg car whose velocity is 16.67 m/s? O 15.0 kJ 125 kJ 12.5 kJ O…

A: Given Mass of car = m = 900 kg Velocity = v = 16.67 m/s We have to calculate the kinetic energy of…

Q: What is the mass of a man running at 6.78 m/s if he has a kinetic energy of 1546 J?

A: Given Kinetic energy = 1546 J Velocity (V) =6.78 m/s

Q: A body loses 392 J of potential energy in falling through 5 m. If the gravitational acceleration is…

A: Express the relation for the potential energy lost by the body. PE=mgh Here, PE is the potential…

Q: A particle of mass 2.3 kg moves under the influence of a force: F(x)=(−5x2+7x) N If its speed…

A: potential energy = - ∫f.dx = -∫(-5x2 +7x)dx = - (-5x3/3 + 7x2/2) = (5/3)(x3) - 3.5 x2 total energy…

Q: How many watts of power do you expend when you exert a force of 3 N that moves a book 5 m in a time…

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Q: How much energy does it take to apply a 400 newton force to push a car 4 meters?

A: Given data The magnitude of force applied is F = 400 N The distance moved by car is d = 4 m

Q: A particle of mass 2.0 kg moves under the influence of the force F(x) =(−5x2 + 7x)N. If its speed at…

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Q: A 500 kilogram car moving at 20 meters per second strikes a stone wall and is brought to a halt in…

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Q: 6.41 The driver of a 1200-kg car notices that the car slows from 20 m/s to 15 m/s as it coasts a…

A: Given : mass, m = 1200 Kg  Initial speed, u = 20 m/s  Final speed, v = 15 m/s  Distance moved, d =…

Q: A particle of mass 1.5kg moves according to the equation x(t)=10t2, where x is in meters and t is in…

A: The force acting on an object is given by  Force = mass x acceleration

Q: A 69 kg passenger in an airplane has a kinetic energy of 4.3x 10^6 j. What is t

A: Kinetic energy is proportional to the square of velocity. Mathematically it can be expressed as,…

Q: If a car of mass 1200 kg is moving along a highway at 120 km/h, what is the car’s kinetic energy as…

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Q: You push a 12 kg block with a force of 32 N for a distance of 4.1 m How much kinetic energy (in J)…

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Q: A 5.0 kg object is moving at 4 m/s? By what factor does its kinetic energy change if its mass is…

A: GIVEN: m= 5kg v= 4m/s  Kinetic energy: Kinetic energy is the energy that an item or particle has as…

Q: A force of 7 pounds is required to hold a spring stretched 0.6 feet beyond its natural length. How…

A: The required force to stretch the spring by ∆x = 0.6 ft is F1 = 7lb so by the spring force law i.e.…

Q: A student pushes a 35-kg block on a frictionless, horizontal surface with a horizontal force of 18N.…

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