when a force vector F=(i+2j+k)N acts on a body & produces a displacement of S= (4i+j+7k)m, then the work done is
Answers
Answered by
54
w=f.d
w=(i+2j+k)(4i+j+7k)
w=4+2+7
w=13
i×i=1, i×j=0, i×k=0
similar for j and k
w=(i+2j+k)(4i+j+7k)
w=4+2+7
w=13
i×i=1, i×j=0, i×k=0
similar for j and k
TanyBaby:
u r correct. actually i knew this answer just put it in brainly to see how many can solve it.
that was basics
yeah then also for tp
and some ppl lack in basics
Answered by
27
W=F.S
therefore,
W =i(4x1)+j(2x1)+k(7x1)
but ixi=1
and thus the answer is
W= 4+2+7
=13
therefore,
W =i(4x1)+j(2x1)+k(7x1)
but ixi=1
and thus the answer is
W= 4+2+7
=13
its wrong
remove all the variables (i,j,k) and add 4, 2, 7 that is 13
thanks for rectifying my mistake
kk it happens. dont worry. i know the answer just wanted to see who all can solve this
oh nice of you
just chill. dont think that i gave wrong answer she is misguided.;)
yeah i'll chill its ok
tysm for correcting me :)
Similar questions