Question

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!!!!!!😥😥😥😥😥😥😫😫😫😫😫

Answer 1

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

Answer 2

Thanks

Answer 3

P/S IS 45CM NOT 35CM

Answer 4

Jjdgknfgki

Answer 5

320 not 45

Answer 6

Physics

Answer 7

please i need a answer

Answer 8

Very good