Which one is a unit vector ?

Vectors And Equilibrium 08/04/2021

A. ??3 i^ + ??3 j^ + ??3 k^
B. 1/??3 i^ + 1/??3 j^ +1/ ??3 k^
C. ??3 / 3 i^ + ??3 / 3 j^ + ??3 / 3 k^
D. Both B and C are correct

Related Mcqs:

    The resultant of two forces of equal magnitudes is also equal to the magnitude of the forces. The angle between the two forces is________________?
    A. 30° B. 60° C. 90° D. 120°...
    Three coplanar forces acting on a body keep it in equilibrium. They should therefore be_______________?
    A. Concurrent B. Non-concurrent C. Parallel D. Non-parallel...
    Which one is not a correct relation ?
    A. AxB = -BxA B. |AxB| = -|BxA| C. AxB = AB Sinθn^ D. BxA = AB Sinθ(-n^)...
    An angle between two vectors A and B can be determined by_____________?
    A. Their dot product B. Their cross product C. Head to tail rule D. Right-hand rule...
    Which one is not a type of dynamic equilibrium ?
    A. Rotational equilibrium B. Translational equilibrium C. Static equilibrium D. Both A and C are corret answer...

Leave a Reply

Your email address will not be published. Required fields are marked *