Find the power output of the engine of a 1200-kg car while the car accelerates from 30 to 100 km/h in 10 s.

Q: Find the power required by a 1400-kg car if the car climbs a 30 ° hill with a constant speed of 72…

A: Given: mass of car, m = 1400 kg angle of inclination of hill, θ = 30° speed of car, v = 72 km/hr =…

Q: calculate the power used lifting a 20 kg barbell to height of 0.75 m in 1.25 s.

A: given: mass of barbell m =20 kg height lifted h = 0.75 m time taken t = 1.25 sec

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: Calculate the power output needed for a 950-kg car to climb a 2.00° slope at a constant 30.0 m/s…

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Q: 13) A person runs up a long flight of stairs in 10 seconds. If the person’s weight is 600 N and the…

A: Given values: Person's weight or force due to gravity,F=600 N Vertical height or displacement, s=20…

Q: An 80-kg jogger that is initially running at 5.0 m/s uniformly accelerates to 8.0 m/s in a time of…

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Q: Find the potential energy stored in ball of mass 3 kg raised to height 4.122 m

A: Given data : Mass=m Acceleration due to gravity=g Height=h   Required : Potential energy

Q: Choose the BEST answer to the following: The power required to raise a 100-kg crate a vertical…

A: Given:Mass=100kgvertical distance =2mTime=4s

Q: A boy of mass 40 kg climbs a vertical rope 8 meters in length in 12 seconds with constant velocity.…

A: Mass of boy= 40 Kg Time = 12 s Height gain= 8 m

Q: A man pushes a lawn mower on a level lawn with a force of 200 N. If 31% of this force is directed…

A: Given: The force F = 200 N. The power P = 63 W. The distance d = 4.7 m.

Q: A jet engine develops 10^5 N of thrust in moving an airplane forward at a speed of 900 km/hr. What…

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Q: The car weighing 1.0 × 10³ kg has an engine with a power of 80 kW. What is the biggest acceleration…

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Q: How much work is required to throw a ball with a mass of 0.46 kg 33.1 m/s? Assume the ball starts at…

A: Given Mass of ball = 0.46 kg Initial velocity of ball = 0 m/s Final velocity of ball = 33.1 m/s We…

Q: Find the mass of a scooter that drives at 14 m/s and has 1200 J of energy.

A: Introduction :  In this question we are provided with value of velocity and kinetic energy . With…

Q: Calculate the kinetic energies (in J) of the following. a 2,004.0 kg automobile moving at 140.0…

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Q: How much power is needed to lift a 12.5 kg sack of rice from the ground to a height of 1.5 m within…

A: According to guidelines we need to solve only first question kindly repost other questions in the…

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: Find the power output of a 2-m dash-runner who accelerates from 0 to 4 m/s in 0.5 s if he is 60 kg.

A: Given Mass of runner m=60kg Initial velocity u=0m/s Final velocity v=4m/s Time t=0.5s

Q: A crane operating with power of 1225 W needs to lift a 500 kg mass to height of 30 m. About how ong…

A: Given:- mass of the object m= 500 kg  height h = 30 m  The power P =1225 W  Find:- how long will it…

Q: In climbing up a rope, a 78-kg athlete climbs a vertical distance of 6.0 m in 9.0 s.   What…

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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: 2. How much power does a person produce when they do 450 J of work in three seconds? O 900 W O 225 W…

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Q: The driver of a passenger car puts the car to "rest" at the speed of 90 km/h, therefore, the car's…

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Q: A boy of mass 45 kg climbs a vertical rope 9 meters in length in 15 seconds with constant velocity.…

A: Given: The mass of the object is 45 kg. The vertical height is 9 m. The time interval is 15 s.

Q: Show that about 786 W of power is expended when a 500-N barbell is lifted 2.2 m above the floor in…

A: The expression for the power is,

Q: Calculate the mass of a car that drives at 14 m/s and has 20000 J of energy .

A: Given data :                         Velocity     =     V                 Kinetic energy    =   K•E…

Q: The electric motor of a model train accelerates the train from rest to 0.660 m/s in 16.0 ms. The…

A: The expression form work-energy theorem,

Q: A 1300-kg elevator carries a maximum load of 750 kg. A constant frictional force of 3000 N retards…

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

A: Power=work (W)time (t)            =force (F)·displacement (S)time (t)            =force…

Q: A boy of mass 45 kg climbs a vertical rope 9 meters in length in 15 seconds with constant velocity.…

A: Power output is force × velocity. Velocity =9m/15s = 0.6m/s

Q: A 1200-kg sports car is advertised to accelerate from 0-100 km/h (27.78 m/s) in 3.00 s. What is the…

A: Solution

Q: The electric motor of a model train accelerates the train fromrest to 0.620 m/s in 21.0 ms. The…

A: Using Work-Energy theorem,

Q: 3 An elevator lifts a load of mass 10 kg a distance of 50 m in 14 s. Find the work done and the…

A: Given Data : The mass lifter by the elevator is given as m = 10 Kg. The distance by which the mass…

Q: Rita raises a 10.0 kg package to a height of 2.5 m in 2.0 s. How much power was expended on the…

A: Given Mass (m) = 10 kg  Height (h) = 2.5 m  time (t) = 2 s    Work done by Rita against gravity w =…

Q: A boy of mass 35 kg climbs a vertical rope 10 meters in length in 12 seconds with constant velocity.…

A: Given Mass of boy , m=35kg Length of rope d=10m Time t=12s Acceleration due to gravity g=9.8m/s²…

Q: A boy of mass 35 kg climbs a vertical rope 10 meters in length in 12 seconds with constant velocity.…

A: Given : m = 35 kg h = 10 m t = 12 seconds

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

A: Power is defined as the rate of workdone.

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: Find the mass of an object if it requires 700 W of power to raise it to the height of 70 m in 1.1…

A: Power = 700 W  Mass = M Height = 70 m  Time = 1.1 minutes

Q: Find the height of ball to be raised of mass 18 kg to gain potential energy of 480 J

A: Given: The mass of the object is 18 kg. The potential energy is 480 J.

Q: Calculate the kinetic energy of a truck that has a mass of 2900 kg and is moving at 55 m/s.

A: We are allowed to answer only the first question. For solutions to other questions, please re-post…

Q: A 3.79-kg box is thrown vertically downward with a speed of 8.92 m/s from a height of 10.37 m.…

A: Q. Given that Mass of the box m = 3.79 kg Initial speed of the box  v = 8.92 m/s  Initially, the box…

Q: While cruising along a level ground in a one horse open sleigh at 4.0 m/s, Santa cracks the whip and…

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Q: A man pushes a mower on a level lawn with a force of 155 N over a horizontal distance 7.2 m in 8.0s.…

A: Given data The force is given as F = 155 N. The horizontal distance is given as d = 7.2 m. The time…

Q: What is the kinetic energy of a 65.0 kg sprinter running at 2.30 m/s?

A: Given, m = 65kg v = 2.3 m/s

Q: Calculate the mass of a car that drives at 32 m/s and has 42000 J of energy.

A: Introduction :   In this question we are provided with value of velocity and kinetic energy . with…

Q: A boy of mass 35 kg climbs a vertical rope 10 meters in length in 12 seconds with constant velocity.…

A: