magnetism?
I think the final answer should be by Bi2R but cannot understand the clear logic behind it
11 Replies
@Gyro Gearloose
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Please correct me if you think I am wrong...
You did not use the information about torque though
Bro we need to find normal reaction
That's a force so why calculate torque
To relate with mg?
I think I get it lemme try I figured it out
@myst1cboomer
@myst1cboomer what's the answer?
That Normal reaction is taken on the centre of mass a semi circular ring...i.e 2R/π from centre
Since we are considering half ring...i took mg/2
9
+solved @Sukritya
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