Question

Pat builds a track for his model car out of wood. The track is 19.00 cm wide, 4.00 m long, and 1.78 m high, and is solid. The runway is cut such that it forms a parabola by the equation y = (x - 4)^2 / 9. Locate the horizontal coordinate of the center of gravity of this track.

Answer 1

1 G-G) os. |-78m | 9 . 19cm 4 Sklek let õ is the mass per unit årer. K 4cm x Vertical Strip at position a witty wid 15 dx and MOOC height (age has mass dm = a (944) dx total mas M = Jam = 3 = (x-4) 1 (416-8x) dx 62- M-a [ + 16x - 8 st M-[+166) - 807)]-C03 - Lepo M= o but he x-cord coordinate of the Center a gravity is Acg = Sady = fx a (x-4) dx q

- 이 a ri - K Joetryran rtexper) 이름 비동 비 e lcnd = [ + J-7] - [9], but we knas Mode ()() = |