Question

A force 3i+2j displaces a 1 kg mass from i+j to -i+2j . find the work done?

Answer 1

Answer:

Explanation:

A force 3i+2j displaces a kg mass from i+j to-i+2j. the work done.

Answer 2

27 Joule will be the work done.

Given:  force 3i+2j displaces a 1 kg mass from i+j to -i+2j

To find: work done

Solution:

• In arithmetic and workings, a dislocation is a heading whose distance is the abridged distance from the beginning to the definitive position of a point P going through motion.
• It restricts two together the distance and route of major computer network or total motion ahead a direct route from the beginning position to the definitive position of the point course.
• A dislocation concede possibility be associated with the interpretation that maps the beginning position to the conclusive position.A dislocation can be still interpreted as a relative position (happening from the motion), namely, as the last position xf of a point concerning allure beginning position xi.
• The equivalent dislocation heading maybe outlined as the dissimilarity betwixt the ending and beginning positions.
  

Let simplify the problem,

$F= 3i+2j+5k+2i+y-3k\\=5i+3i+2k\\S= (4i-2j+7k)-(2i-j-3k)\\=2i-j+10k\\\\W=F.S\\=5*2-3*1+10*2\\=27J\\W=27J$

27 Joule will be the work done.

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