Questions
It is found that |+
| = |
| . This necessarily implies.
a
must be zero
b
, are antiparallel
c
and are perpendicular
d
. < 0
detailed solution
Correct option is D
If α be the angle between A→ and B→, then R ='R' may be equal to A only when α is obtuse.In that Case A→.B→ = AB cosα < 0So option -(4) is correct.Talk to our academic expert!
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(N-1) identical forces of magnitude F act simultaneously on a particle each making an angle of with the preceding one, the resultant is
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