<text><span class="style10">orces affecting Solids and Fluids (5 of 9)</span><span class="style7">If a uniform gravitational field is present, the center of gravity coincides with the center of mass. Thus all the weight can be considered to act at this single point. The stability of an object is helped by keeping the center of gravity as low as possible. A racing car is low-slung to improve stability.</span></text>
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<text><span class="style10">. Center of mass</span><span class="style7">. In the left-hand picture the person is in a stable state because the perpendicular through his center of mass falls between the legs of the chair. In the center picture, although the chair is tipped, the perpendicular still falls within the safe area between the legs of the chair. In the right-hand picture the perpendicular falls outside the legs of the chair. The person sitting on the chair is in trouble.</span></text>
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<text>ΓÇó MOTION AND FORCEΓÇó THERMODYNAMICSΓÇó HOW CARS WORK</text>
