Balance

A rod 4.3 m long has weights of 9 kg and 15 kg hanging from its ends. Where should the fulcrum be placed (measured from the 9 kg weight) for the rod to be in balance?

Final Answer:

x =  2.69 m

Step-by-step explanation:

m1=9 kg m2=15 kg L=4.3 m  x+y = L M1=M2  x+y=L m1 x = m2 y  m1 x=m2 (Lx) 9 x=15 (4.3x)  24x=64.5  x=2464.5=2.6875  x=1643=2.6875=2.69 m



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