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A magnetic compass needle is subjected t...

A magnetic compass needle is subjected to a force of 0.02 N acting due north and a force of 0.04 N acting due west. Calculate the resultant force on the needle and the direction in which it rests.

Text Solution

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Use, `R^(2) =F_(1)^(2) +F_(2)^(2) +2F_(1)F_(2) cos theta`
`therefore R = 0.0447` newton in the north-west direction.
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