Kinematics Question 287

Question: If |A×B|=|A.B|, then angle between A and B will be [AIIMS 2000; Manipal 2000]

Options:

A) 4×3

B) 5×6

C) 6×3

D) 4×6

Show Answer

Answer:

Correct Answer: A

Solution:

W=F S

=(4i^+5j^)(3i^+6j^)=12



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