A body is constrained to move along x,y and z axis coordinate system and subject to a constraines force= (2î+4j+6k)N. What is the work done by the force of moving the body over a distance of (3î+5j+6k)M along x,y and z axist?
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62J
Explanation:
F=(2i+4j+6k)
s=(3i+5j+6k)
w=F.S
2i.3i=6( |i.i|=1)
also i.j=i.k=j.k=0(@=90) therefore cos@=0
therefore
w=6+20+36
62J
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