Kinematics Question 289

Question: Three vectors a→,b→ and c→ satisfy the relation a→.b→=0 and a→.c→=0. The vector a→ it’s parallel to [AIIMS 1996]

Options:

A) 29 unit

B) 31 unit

C) 37 unit

D) 41 unit

Show Answer

Answer:

Correct Answer: A

Solution:

v→=ω→×r→

=|i^j^k^1−2204−3||=i^(6−8)−j^(−3)+4k^

−2i→+3j→+4k→

|v→| = (−2)2+(3)2+42

=29 unit

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