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Solving a problem in physics section 54 point 7 mechan
7. Tractor mass 10 m passes through the bridge at a speed of 10 m / s. What is the pressure force of the tractor in the middle of the bridge when the bridge; 1) flat; 2) convex with a radius of curvature of 200 m; 3) concave with same radius of curvature.
Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)
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