Forces acting upon a car moving downhill:
FG…gravitational force
N2…normal force with which the road acts upon the car
Fb2…braking force
Equation of motion for a car going downhill:
Fb2 + FG + N2 = ma2
We rewrite the equation using scalars and choose a coordinate system such that the x axis is parallel to the movement of the car. The y axis is perpendicular to the x axis. We split the gravitational force into two components in the directions of the axes:
Explanation in paragraphs and mathjax steps from 22 to 25 equation
Enter m
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