Calendar: 1850-1851 Page 328

324 APPLIED SCIENCES Β is smooth inclined plane whose length Β base height Β is given weight placed upon it and Ρ horizontal force acting on if what must Ρ be in order to support If Q0 P- 00 what is the pressure upon the plane 10 ABC is an inclined plane Ε an uniform horizontal beam having fulcrum at the other end resting on Ώ ft ο Find the pressure on the plane the weight of Ε being 100 and the plane of the same dimensions as in question 11 In the preceding question if Β is capable of moving freely along horizontal plane find what force acting horizontally will keep Β at rest 12 Β CD is rectangular block resting on horizontal plane and having hinge at about which it may freely turn Ρ is weight and Ρ Ε string passing over pulley and fixed at to Β CD 10 and CΕ 30 weight οι Β CD 100 find what Ρ must be in order to upset Β CD