5-5* Locate the center of gravity for the five particles shown in Fig. 5-5 if WA = 25 Ib, We - 35 Ib, Wc = 15 lb, Wp= 28 lb, and Wg - 16 lb. E 16 in. Op 11 in. B 11 in. 10 in. S in.
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- A rock is attached to the left end of a uniform meter stick that has the same mass as the rock. In order for the combination of rock and meter stick to balance atop the triangular object in Fig., how far from the left end of the stick should the triangular object be placed? (i) Less than 0.25 m; (ii) 0.25 m; (iii) between 0.25 m and 0.50 m; (iv) 0.50 m; (v) more than 0.50 m.4. ANSWER WITH CLEAN SOLUTIONS AND WITH FREE BODY DIAGRAMTo get up on the roof, a person (mass 85.0 kg) places a 6.20 m aluminum ladder (mass 15.0 kg) against the house on a concrete pad with the base of the ladder 2.00 m from the house. The top of the ladder rests against a plastic rain gutter, which we can assume to be frictionless. The center of mass of the ladder is 2.00 m from the base, as measured along the ladder. The person is standing on the ladder 3.00 m from the base, as measured along the ladder. Find the normal reaction and friction forces (in N) on the ladder at its base. (Enter the magnitudes.)
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