A force =(3ti + 5j) N acts on a body due to which its position varies as $ = (2t²î -5j). Work done by this force in first two seconds
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Answer:
Explanation:
see subtitute t=2seconds
f=6i+5j
s=8i-5j
do dot product to get workdone
workdone=f.s
48-25=23
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