Home
Class 12
PHYSICS
Theree coplanar vectors vecA,vecB and ve...

Theree coplanar vectors `vecA,vecB` and `vecC` have magnitudes 4.3 and 2 respectively. If the angle between any two vectors is `120^(@)` then which of the following vector may be equal to `(3vecA)/(4)+(vecB)/(3)+(vecC)/(2)`

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
2
`|(vecB)/(3)|=|(vecC)/(2)|` so `(vecB)/(3)+(vecC)/(2)=(vecA)/(4) "therefore" (3vecA)/(4)+(vecB)/(3)+(vecC)/(2)=(vecA)/(2)`
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

The magnitudes of vectors vecA,vecB and vecC are 3,4 and 5 units respectively. If vecA+vecB= vecC , the angle between vecA and vecB is

Three vectors vecA,vecB and vecC are such that vecA=vecB+vecC and their magnitudes are in ratio 5:4:3 respectively. Find angle between vector vecA and vecC

If vecA = vecB + vecC and the magnitudes of vecA, vecB and vecC are 5,4 and 3 units respecetively, the angle between vecA and vecC is :

The angle between two vectors veca and vecb with magnitudes sqrt(3) and 4, respectively and veca.vecb = 2sqrt(3) is:

If vecA,vecB and vecC are coplanar vectors, then

The magnitudes of vectors vecA.vecB and vecC are respectively 12,5 and 13 unira and vecA+vecB=vecC , then the angle between vecA and vecB is :

A magnitude of vector vecA,vecB and vecC are respectively 12, 5 and 13 units and vecA+vecB=vecC then the angle between vecA and vecB is

vecA, vecB" and "vecC are three orthogonal vectors with magnitudes 3, 4 and 12 respectively. The value of |vecA-vecB+vecC| will be :-

Let veca, vecb and vecc be the three vectors having magnitudes, 1,5 and 3, respectively, such that the angle between veca and vecb "is" theta and veca xx (veca xxvecb)=vecc . Then tan theta is equal to

if veca,vecb and vecc are mutally perpendicular vectors of equal magnitudes, then find the angle between vectors and veca+ vecb+vecc .