Calendar: 1869-1870 Page 521

APPLIED SCIENCES 523 Explain what is meant by centrifugal force Give examples and show by the formula that the balls of governor must rise when the speed of the engine increases Explain the usee of Attwood's machine as far as regards the formulae rt p2 F2 From point in smooth plane which rises 15 feet in 100 body is projected with velocity of 48'3 feet per second after how many seconds will it come to rest What is the vertical height and horizontal space passed over during that interval 10 smooth plane is inclined at 30 to the horizon and is 386 feet long weight of lbs hanging vertically over the top draws by means of weightless string weight of lbs up the plane Find the time this weight takes to pass from the bottom to the top of the plane and also the velocity it has at the top If at this instant the string is cut find the position of the highest point reached by the weight IV Stomttrtcal rafotnjj SECOND YEAR Draw an irregular polygon of five sides from the following conditions Its sides AB 13 BE 125 BG ί"ϊ AE 75 CD 215 Its diagonals AC 215 CE Draw triangle equal to it in area Show by their traces any two planes inclined to each other and both planes of projection determine their intersection Show by construction the inclination of each to the horizontal plane rectangular solid its width and thickness alike and its