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10 Nov 2019
71. Physics You have a uniform beam of length L with a fulcrum x feet from one end (see figure). Objects with weights W\ and W2 are placed at opposite ends of the beam. The beam balances when Wix = W2(L-x). W2 Wi Find x such that each beam will balance. (a) Two children weighing 50 pounds and 75 pounds are playing on a seesaw that is 10 feet long. (b) A person weighing 200 pounds is attempting to move a 550-pound rock with a bar that is 5 feet long.
71. Physics You have a uniform beam of length L with a fulcrum x feet from one end (see figure). Objects with weights W\ and W2 are placed at opposite ends of the beam. The beam balances when Wix = W2(L-x). W2 Wi Find x such that each beam will balance. (a) Two children weighing 50 pounds and 75 pounds are playing on a seesaw that is 10 feet long. (b) A person weighing 200 pounds is attempting to move a 550-pound rock with a bar that is 5 feet long.
Jean KeelingLv2
2 Apr 2019