Asked by Denis
A uniform pencil AB of mass 4.0g can be balanced horizontally on a knife edge of 2cm from the end, when a mass 6.0g is hung from this end.What is the length of the pencil
Answers
Answered by
R_scott
let L be the length
the center of mass is located at L/2
2 cm * 6.0 g = [(L/2) - 2] cm * 4.0 g
the center of mass is located at L/2
2 cm * 6.0 g = [(L/2) - 2] cm * 4.0 g
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