SOLUTION: The tractive resistance to forward motion of a motor vehicle is 1460N when the vehicle is travelling at 45km/h . What power is exerted by the vehicle.

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons  -> Linear Equations Lesson -> SOLUTION: The tractive resistance to forward motion of a motor vehicle is 1460N when the vehicle is travelling at 45km/h . What power is exerted by the vehicle.       Log On


   

Question 1191161: The tractive resistance to forward motion of a motor vehicle is 1460N when the vehicle is travelling at 45km/h . What power is exerted by the vehicle.
Answer by ikleyn(52790) About Me  (Show Source):
You can put this solution on YOUR website!
.

Calculate the product of the tractive force, 1460 N by the speed expressed in m/s,

which is  45000%2F3600 = 12.5 m/s.


So, the power to overcome the tractive force is  1460*12.5 = 18250 joules/s = 18250 watts = 18.250 kWt.    ANSWER

Solved.

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Actually, there are many other forces to overcome: the friction forces in different parts of the vehicle . . .