Asked by Richard

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.

Please HELLLLP URGENTLY!!!!!!😥😥😥😥😥😥😫😫😫😫😫
Answered by R_scott
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
Answered by Richard
Thanks
Answered by Anonymous
P/S IS 45CM NOT 35CM
Answered by Jamila
Jjdgknfgki
Answered by Orlu Victoria
320 not 45
Answered by Hassan musa
Physics
Answered by dauda
please i need a answer

Answered by Gloria
Very good
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