Two forces `vec F_(1)`&`vec F_(2)` of magnitude 12N & 5N respectively are exerted on a body.|`vec F_(1)`+`vec F_(2)`|=13N .If the angle between `vec F_(1)&vec F_(2)` is 15x (in degree) then fill the value of x

The magnitude of vector vec(A),vec(B) and vec(C ) are respectively 12,5 and 13 unit and vec(A)+vec(B)= vec(C ) then the angle between vec(A) and vec(B) is

If | vec a|=8,| vec b|=3 and | vec a x vec b|=12 , find the angle between vec a and vec bdot

A slab is subjected to two forces vec F_(1) and vec F_(2) of same magnitude F as shown in the figure . Force vec F_(2) is in XY-plane while force F_(1) acts along z-axis at the point (2 vec I + 3 vec j) .The moment of these forces about point O will be :

Given |vec (x_1) | = 47.5 , |vec (x_2)| = 52.5. and theta = 0 Then | vec (x_1) - vec (x_2)| =

Two forces vec(F)_(1)=500N due east and vec(F)_(2)=250N due north have their common initial point. vec(F)_(2)-vec(F)_(1) is

Two vectors vec(A) and vec(B) have equal magnitudes . If magnitude of vec(A) + vec(B) is equal to n times the magnitude of vec(A) - vec(B) , then the angle between vec(A) and vec(B) is

The magnitudes of vectors vec a , vec b and vec c are respectively 1,1 and 2. If vec a x ( vec a x vec c )+ vec b= vec0 , then the acute angle between vec a& vec c is (a) pi/3 (b) pi/6 (c) pi/4 (d) None of these

If vec a\ a n d\ vec b are two vectors such that | vec axx vec b|=3\ a n d\ vec adot vec b=1, find the angle between vec a\ a n d\ vec b .

If vec a\ a n d\ vec b are two vectors of magnitudes 3 and (sqrt(2))/3 respectively such that vec axx vec b is a unit vector. Write the angle between vec a\ a n d\ vec bdot

If vec a\ a n d\ vec b are two vectors such that | vec a|=| vec axx vec b|, write the angle between vec a\ a n d\ vec bdot