Inclined Plane with the Force Acting Parallel to the Plane Small 320×174 Medium 640×349 Large 1024×558 Download TIFF Original 2400×1308 | (158.7 KB) Description "An inclined plane is a slope, or flat surface, making an angle with a horizontal line...the force acts parallel to the plane." —Hallock 1905 Keywords flat, force, inclined, Parallel, plane, slope, surface Galleries Inclined Planes Source: V. I. Hallock I.C.S. Refrence Library (Scranton: International Textbook Company, 1905) 7:30