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[" 11.A box weighing "2000N" is to be al...

[" 11.A box weighing "2000N" is to be alowly alid through "20m" ."],[" on a straight track having friction coefficient "02" with "],[" the box.(a) Find the work done by the person pulling "],[" the box with a chain at an angle "theta" with the horizontal."],[" (b) Find the work when the person hes chosen a value "],[" of "theta" which ensures him the minimum magnitude of the "],[" force."]

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A box weighing 2000 N is to be slowly slid through 20 m on a straigh track having friction coefficient 0.2 with the box. A find the work done by the person pulling the box wilth a chain at angle theta with the horizontal. B. find the work when the person has chosen a value of theta which ensures him the minimum magnitude of the force.

A box weighing 2000 N is to be slowly slid through 20 m on a straigh track having friction coefficient 0.2 with the box. A find the work done by the person pulling the box wilth a chain at angle theta with the horizontal. B. find the work when the person has chosen a value of theta which ensures him the minimum magnitude of the force.

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