the elements of railroad engineering pulley merely changes the direction in which pacts so that a weight of 1 jound hung on the free end of thecord will balance 2 pounds hung from the movable pulley 938 a combination of pulleys as shown in fig14s is somelinics used in this case thereare three movable and three fixed pulleysand the amount of movement of if owing toa certain movement of is readily found it will le noticed that there are six partsof the rope not counting the free end henceif the movable block be lifted 1 foot re maining in the same position there wouldbe 2cnc39e.jpg from gái gọi hưng yên🍎🍎www 076576 com🍎🍎Đào nha trang View Photo