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A box weighing 2000N is to be slowly slid through 20m on a straight track having coefficient of friction 0.2 with the box. (a) Find the work done by the person pulling the box with a chian at an angle theta with the horizontal. (b) Find the work done when the person has chosen a value of theta which ensures him the minimum magnitude of the force.

Anurag Kshatri , 12 Years ago
Grade 12
anser 1 Answers
ankitesh gupta

Last Activity: 12 Years ago

 

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