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If the constant due to which it is displaced from a point on a particle due to which it is displaced from a point A(4, -3, -2) to a point B (6, 1, -3) then the work done by the forces is |
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Answer» 10 units `F=(2hati-5hatj+6hatk)+(-hati+2hatj-hatk)=hati-3hatj+5hatk` and displacement `d=(6hati+hatj-3hatk)-(4hati-3hatj-2hatk)=2hati+4hatj-hatk` `:.""`Work DONE W `= F* d=( hati-3hatj+5hatk)*(2hati+4hatj-hatk)=-15` `=-15` units[ NEGLECTING- ve sign] |
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