if r1 vector =4m along n-e and r2 vector =2m due north,find. |r1 vector +r2 vector| amd |r1 vector-r2 vector |
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given, along N- E
so, we can write it in vector form,
or,
similarly, due North.
so, we can write it in vector form,
now,
=
magnitude of = √{(2√2)² + (2√2+2)²}
= √{8 + 8 + 4 + 8√2}
= √{20 + 8√2}
magnitude of = √{(2√2)² + (2√2-2)²}
= √{8 + 8 + 4 - 8√2}
= √{20 - 8√2}
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