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If veca , a vector of magnitude 50 , is ...

If `veca` , a vector of magnitude 50 , is collinear with the vector `vecb = 6 hati - 8hatj - (15)/(2) hatk` , and makes an acute angle with the positive direction of z-axis , then the vector `veca` is equal to

A

`24hati - 32hatj + 30hatk`

B

`-24hati + 32hatj + 30 hatk`

C

`16 hati - 16hatj - 15hatk`

D

`-12 hati + 16hatj - 30hatk`

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The correct Answer is:
B
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KCET PREVIOUS YEAR PAPERS-MODEL TEST PAPER 02-MATHEMATICS
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