Displacement vector from (3,4,6) to (7,2,5) , s =4i^−2j^−k^. Work done by the force , W=F ⋅s =8+2−5=5 J. Answer By ... Find the work done by all the forces acting on the particle
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Answers
Answered by
1
Answer:
Force,
F
=4
i
^
−3
j
^
+2
k
^
Displacement vector is
s
=(2−3)
i
^
+(−1−2)
j
^
+(4+1)
k
^
=−
i
^
−3
j
^
+5
k
^
Hence, work done
W=
F
⋅
s
=(4
i
^
−3
j
^
+2
k
^
)⋅(−
i
^
−3
j
^
+5
k
^
)=−4+9+10=15units
hope it helps you
Answered by
20
Answer:
Force,
F
=4
i
^
−3
j
^
+2
k
^
Displacement vector is
s
=(2−3)
i
^
+(−1−2)
j
^
+(4+1)
k
^
=−
i
^
−3
j
^
+5
k
^
Hence, work done
W=
F
⋅
s
=(4
i
^
−3
j
^
+2
k
^
)⋅(−
i
^
−3
j
^
+5
k
^
)=−4+9+10=15units
Step-by-step explanation:
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