Posted by Subhotosh Khan on August 21, 2002 at 13:26:00:
In Reply to: Very hard Work problem posted by Spike Spiegel on August 21, 2002 at 13:04:18:
: Find the work done in moving a particle from P to Q if the magnitude and direction of the force are given by v..
: P(0,0,0), Q(4,7,5), v = <1,4,8>
*****************************************
This is not a VERY HARD problem
1) Find vector PQ
2) find unit vector along PQ (differential)=dS
3)find scalar product V.dS
4)Integrate along proper limits.