Home
Class 12
PHYSICS
Magnitude of resultant of two vector vec...

Magnitude of resultant of two vector `vec(A)` and `vec(B)` is equal to 2. angle between two vectors is `180^(@)` if `|vec(A)|=3` then find `|vec(B)|`

A

5

B

3

C

1

D

4

Text Solution

Verified by Experts

The correct Answer is:
AC
3-B=2
or B-3=2
B=1 or 5
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

If the angle between two vectors vec(a) and vec(b) is zero, then :

Two vector vec(A) and vec(B) have equal magnitudes. Then the vector vec(A) + vec(B) is perpendicular :

The magnitude of the vectors vec(a) and vec(b) are equal and the angle between them is 60^(@) . If the vectors lambda vec(a)+vec(b) and vec(a)-lambda vec(b) are perpendicular to each other, then what is the value of lambda ?

The magnitude of the vectors vec(a) and vec(b) are equal and the angle between the is 60^(@) the vectors lamda vec(a) + vec(b) and vec(a)- lamda vec(b) are perpendicular to each other them what is the value of lamda ?

The resultant of two velocity vectors vec(A) and vec(B) is perpendicular to vec(A) . Magnitude of Resultant vec(R ) is equal to half magnitude of vec(B) . If the angle between vec(A) and vec(B) is (30 theta)^(@) , then value of theta is ?

If for two vectors vec(A) and vec(B), vec(A)xxvec(B)=0 , the vectors

The resultant of two vectors vec(A) and vec(B) is perpendicular to the vector vec(A) and its magnitudes is equal to half of the magnitudes of vector vec(B) (figure). The angle between vec(A) and vec(B) is

Find the angle between two vectors vec a and vec b, if |vec a xxvec b|=vec avec b

If theta be the angle between two vectors vec(a) and vec(b) , then vec(a).vec(b)ge0 only when

Find the angle between two vectors vec a and vec b, if |vec a xxvec b|=vec a*vec b