A uniform metre rule AB us balanced on a knife edge which is 55cm from B. If a mass of 10g is hung at P, which is 10cm from A, calculate the mass of the metre rule.

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8 answers

the center of mass of the rule is 5 cm from the knife edge (towards B)

the 10 g mass is 35 cm from the knife edge (towards A)

the rule is balanced , so the moments are equal

5 cm * (mass of rule) = 35 cm * 10 g

Thanks

P/S IS 45CM NOT 35CM

Jjdgknfgki

320 not 45

Physics

please i need a answer

Very good