austinkellylay
24.03.2020 •
Mathematics
Cuanto es 100+300+25+25
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Ответ:
The correct question is in the attachment
Step-by-step explanation
Grade resistance is the simplest form of resistance. It is the gravitational force acting on the vehicle.
The grade resistance is given as.
Rg=WG
W= Vehicle Weight
G= Grade (length/length)
The grade resistance is modeled as
F=WSinθ
Since the car is moving downhill at an angle of 5°
Then, θ=-5° for downhill θ is negative
Give that the weight of the car is 2100lb
Then, grade is
F=WSinθ
F=2100Sin(-5)
F=-183.03lb
Approximately
F=-183lb