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A metre stick is balanced on a knife edg...

A metre stick is balanced on a knife edge at its centre . When two coins , each of mass 5 g are put one on top of the other at the 12.0 cm mark , the stick is found to be balanced at 45.0 cm . What is the mass of the metre-stick ?

A

56 g

B

66 g

C

76 g

D

86 g

Text Solution

Verified by Experts

The correct Answer is:
B
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