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Question : 2 of 160
Marks:
+1,
-0
Solution:
We know, work done W = F.d
Given, force
F=2−− and position vector,
d=3+2−5 Using vector identify
.=.=.=1 Hence,
W=F.d =(2−−).(3+2−5) =6−2+5=9 units
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