Physics > 2015 > 13
WASSCE
A uniform bar AB is balanced on a knife-edge which is 60cm from B by a mass of 22g which hangs at C 10cm from A as illustrated in the diagram above. Calculate the mass of the bar.
A.
133.3g
B.
66.0g
C.
60.0g
D.
22.0g
Answer: B
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