A particle is displced through
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Answer:
Step 1: Finding Displacement vector for calculating Work done
Δr
=
r
2
−
r
1
=(3
i
^
+2
j
^
−2
k
^
)−(2
i
^
−
j
^
+
k
^
)
∴
Δr
=(
i
^
+3
j
^
−3
k
^
)
Step 2: Calculation of workdone
Work done W=
F
.
Δr
⇒ W=(2i+j−k). (i+3j−3k)
⇒ W=2+3+3=8J
∴ Work Done by the force is 8J
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