What is the mass of the meter stick when a meter stick is balanced...

What is the mass of the meter stick when a meter stick is balanced on a knife edge at its center, and two coins, each of mass 5 g, are placed one on top of the other at the 12.0 cm mark, resulting in the stick being balanced at 45.0 cm?

Options

A122 g
B66 g
C33g
D132g

Correct answer

B. 66 g

Step-by-step solution

Correct Option is : (B)
66 g

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