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A body weighing 2000N is to be slowly slid through 20 m on a straight trach having coefficient 0.2 with the box. a)Find the work done by the person pulling the blody at an angle (thita) with the horizontal. b) Find the work when the person has chosen a value of thita which ensures him a minimum magnitude of the force. Please give the solution for this problem. (It is a HC verma problem)


A body weighing 2000N is to be slowly slid through 20 m on a straight trach having coefficient 0.2 with the box.

a)Find the work done by the person pulling the blody at an angle (thita) with the horizontal.

b) Find the work when the person has chosen a value of thita which ensures him a minimum magnitude of the force.

Please give the solution for this problem. (It is a HC verma problem)


Grade:10

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