Question

two vectors are given as r=4i+2j+5k and f = 3i - 2j + 6k find the resultant vector ​

Answer 1

chudwalo mujhse plzzz ya girfriend ban jao roj dalunga

Answer 2

Answer:

Two given vectors are:

A

=2

i

^

+3

j

^

+4

k

^

B

=3

i

^

−5

j

^

Resultant by addition of A and B

R=A+B

=(2

i

^

+3

j

^

+4

k

^

)+(3

i

^

−5

j

^

+

k

^

)

=2

i

^

−3

i

^

+3

j

^

−3

j

^

+4

k

^

−

k

^

=−

i

^

+0

j

^

+3

k

^

=−

i

^

+3

k

^

unitvector=

Magnitudeoffullvector

Fullvector

magnitude of R=

1

2

+9

2

=

10

Thus Unit vector along the direction of R

=Vector R / Magnitude of R

=

10

−i+3k