The resistance to motion is given by R, = (0.011 + 0.000 06 V) Mg + 0.028 AV² %3D where M is the mass in kg, V is the velocity in km/h and A is the frontal area in m². A jeep of 1400 kg mass and 2.4-m² frontal area is used to pull a trailor with a gross mass of 800 kg at 50 km/h in top gear on level road. If the jeep is capable of developing 40 kW of power for propulsion, find whether it is adequate for the job. The transmission efficiency may be taken as 92%. Also, find the pull on the coupling at this speed. If all the power is used by the loading trailor, determine the pull in the coupling at 50 km/h and the load put on the trailor.
The resistance to motion is given by R, = (0.011 + 0.000 06 V) Mg + 0.028 AV² %3D where M is the mass in kg, V is the velocity in km/h and A is the frontal area in m². A jeep of 1400 kg mass and 2.4-m² frontal area is used to pull a trailor with a gross mass of 800 kg at 50 km/h in top gear on level road. If the jeep is capable of developing 40 kW of power for propulsion, find whether it is adequate for the job. The transmission efficiency may be taken as 92%. Also, find the pull on the coupling at this speed. If all the power is used by the loading trailor, determine the pull in the coupling at 50 km/h and the load put on the trailor.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:The resistance to motion is
given by
R, = (0.011 + 0.000 06 V) Mg
+ 0.028 AV²
%3D
where M is the mass in kg, V is the velocity in
km/h and A is the frontal area in m².
A jeep of 1400 kg mass and 2.4-m² frontal
area is used to pull a trailor with a gross mass of
800 kg at 50 km/h in top gear on level road. If the
jeep is capable of developing 40 kW of power for
propulsion, find whether it is adequate for the
job. The transmission efficiency may be taken as
92%. Also, find the pull on the coupling at this
speed.
If all the power is used by the loading trailor,
determine the pull in the coupling at 50 km/h
and the load put on the trailor.
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