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Machanics

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particles of mass 3m and 5 m hang one at each end of a light inextensible string which passes over a pulley.The system is released from rest with the hanging parts taunt and vertical.During the subsequent motion the resultant force exerted by the string on the pulley is of magnitude-
a 8mg
b 7.5mg
c 3.75mg
d 4mg
e 2mg

  • Machanics - ,

    Machanics? taunt?

    Wow.
    Now to greater errors. What exactly is a mass of 3m or 5m?

    And in the answers, since when is force measured in milligrams? Isn't that a mass unit?

    Something is major wrong in your physics class, this usage is not acceptable: Remember this was the problem that brought down the English units, confusing lbs force and lbs mass.

    I am not taunting you or your instructor, I hope.

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