Resistance to the motion of an automobile consists of road friction, which is almost independent of speed,
Question:
Resistance to the motion of an automobile consists of road friction, which is almost independent of speed, and air drag, which is proportional to speed-squared. For a certain car with a weight of 12000 N, the total resistant force F is given by F = 300 = 1.8v2, with F in Newton’s and y in meters per second. Calculate the power (in horsepower) required to accelerate the car at0.92 m/s2 when the speed is 80 km/h.
Step by Step Answer:
We work this in SI units and convert to horsepower in the last step Th...View the full answer
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
Related Video
In Physics, a force is an influence that can change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity. In this video, the concept of force and torque is demonstrated with the practical application of changing the flat tire of the car.
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