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.Management Sciences
Category: Vectors And Equilibrium
A vector can be multiplied by a number. The number may be_______________?
A. Dimensionless
B. Dimensional scalar
C. Negative
D. All A, B and C are correct
Which one is not correct for a vector A= 2i+2j+3k ?
A. Has direction 45° with an x-axis
B. Has magnitude 2
C. Has magnitude 2 and direction °=45° with a y-axis
D. Has magnitude -2
Torque acting on a body determines_______________?
A. Acceleration
B. Linear acceleration
C. Angular acceleration
D. Direction of motion of the body
In which quadrant, the only value of tan will be positive ?
A. First
B. Second
C. Third
D. Both 1st and 3rd
The direction of the vector product is given by______________?
A. Head to tail rule
B. Right-hand rule
C. Left-hand rule
D. Triangular rule
The cross product of two vectors is a negative vector when______________?
A. They are parallel vectors
B. They are anti parallel vectors
C. They are a perpendicular vector
D. They are rotated through 270°
Null vector is a vector which has________________?
A. Zero magnitude
B. No specified direction
C. Both A and B are correct
D. Both A and B are not correct
Two vectors are A = 3i^+2j^ -k^& B = 3i^-2j^ +k^ , then_____________?
A. B is anti-parallel to A
B. B is a negative vector of A
C. B has a negative magnitude
D. B is perpendicular to A
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