Question 18 of 19 Sapling Learning Ma p. Three 93.2 gram masses are connected in

Question

Question 18 of 19 Sapling Learning Ma p. Three 93.2 gram masses are connected in a triangular shape by massless rigid wires as shown in the first image (which is not drawn to scale). The coordinates of each mass are given in centimeters. Find the x and y coordinates of the center of mass of the triangular object +y (14.2, 18.5) Number Number (18.3, 15.4) cm cm (0, 0) + x 5 (0, 28.8)2 Two more 93.2 gram masses are connected by a straight piece of wire and affixed to the original configuration as shown. Find the x and y coordinates of the new center of mass of the combined object Number Number cm cm 4 (0, -28.8) O Previous Check Answer 0 Next -I Exit Hint

Explanation / Answer

a) Xcm = ( 93.2 x 0 ) + (93.2 x14.2) +(93.2 x 18.3) / (279.6) =10.833

Ycm = ( 93.2 x 0 ) + ( 93. 2x 15.4 ) + ( 93.2 x 18.5) / (279.6) =11.3

b) X cm = 3 ( 93.2 x 0 ) + (93.2 x14.2) +(93.2 x 18.3) / (466) = 6.5

Ycm = ( 93.2 x 0 ) + ( 93. 2x 15.4 ) + ( 93.2 x 18.5) + ( 93.2 x -28.8) +( 93.2 x 28.8) / (466) = 6.78

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