Question

The resultant of Avector and Bvector is perpendicular to Bvector .What is the angle between Avector and Bvector?

Answer 1

Answer:

The resultant of two vectors A and B is perpendicular to vector A and its magnitude is equal to half of the magnitude of vector B. Then the angle between A and B is. a) 30°

Explanation:

here your answer .

Answer 2

Answer:

Explanation:

f  A⃗   and  B⃗   are the 2 vectors in question, then the resultant:

S⃗ =A⃗ +B⃗  

if  S⃗   is perpendicular to one of the initial vectors, say  A⃗  ,

S⃗ .A⃗ =0  

→A⃗ .(A⃗ +B⃗ )=0  

→A2+ABcos(θ)=0  

→θ=cos−1(−A2AB)  

→θ=cos−1(−AB)