Secure https/session.master Ch 09 HW roblem 9.17 sics.com/myct/itemView?assignme

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Secure https/session.master Ch 09 HW roblem 9.17 sics.com/myct/itemView?assignmentProblemiD-94104161&offset-next; ) 6 of Three children are trying to balance on a seesaw, which consists of a fulcrum rock, acting as a pivot at the center, and a very light board 3.8 m long (Figure 1) Part A are already on either end. Boy A has a the sesaw? es Where should girl C, whose mass is 25 kg, place herself so as to balance Express your answer to two significant figures and include the appropriate units. mass of 45 kg, and boy B a mass of 35 kg Figure 1 of 1 Value Uni Submit m 35 kg Incorrect: Try Again; 4 attempts remaining: no po nts dedueted m 45 kg Noxt > m 25 kg Erin S

Explanation / Answer

Balancing the torques on both sides of rock :

Left side torque = right side torque

45*9.8*3.8/2 = 35*9.8*3.8/2 + 25*9.8*x

837.9 = 651.7 + 245x

186.2 = 245x

x = 0.76 m

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