Science

PhysicsQ&A LibraryWhen an automobile moves with constant speed down a highway,most of the power developed by the engine is used tocompensate for the mechanical energy loss due to frictionalforces exerted on the car by the air and the road. If the powerdeveloped by an engine is 175 hp, estimate the total frictionalforce acting on the car when it is moving at a speed of 29 m/s.One horsepower equals 746 W.Question

Asked Dec 18, 2019

1 views

When an automobile moves with constant speed down a highway,

most of the power developed by the engine is used to

compensate for the mechanical energy loss due to frictional

forces exerted on the car by the air and the road. If the power

developed by an engine is 175 hp, estimate the total frictional

force acting on the car when it is moving at a speed of 29 m/s.

One horsepower equals 746 W.

Step 1

Power and speed is ...

Tagged in

Find answers to questions asked by student like you

Show more Q&A

Q: is the study of thermodynamics is concerned primarily with macroscopic or microscopic processes?

A: Click to see the answer

Q: A boy throws a baseball onto a roof and it rolls back down andoff the roof with a speed of 3.75 m/s....

A: a)The total time baseball spends in air can be determined using the equation of motion

Q: Two toboggans (with riders) of the same mass are at rest ontop of a steep hill. As they slide down t...

A: Part A:

Q: Is the impulse- momentum relationship related to Newton's second law?

A: Write the newton’s second law .

Q: how does the law of conservation of energy relate to the first law of thermodynamics?

A: According to first law of thermodynamics in any process the difference between heat and work interac...

Q: An object falling under the pull of gravity is acted uponby a frictional force of air resistance. Th...

A: Given information:Equation of the frictional force f = bv.Given the value of b as 15 kg/s.Then the e...

Q: An object has an initial velocity of 10 m/s and an acceleration of 3 m/s squared. How long will it t...

A: The acceleration is defined as the rate of change of velocity.

Q: On an airplane’s takeoff, the combined action of the airaround the engines and wings of an airplane ...

A: Click to see the answer

Q: A rocket is launched at an angle of 53.0° above the horizontalwith an initial speed of 100. m/s. The...

A: Draw the following diagram to represent the motion of the rocket.