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.Management Sciences
Category: Vectors And Equilibrium
Which one is not a type of dynamic equilibrium ?
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A. Rotational equilibrium
B. Translational equilibrium
C. Static equilibrium
D. Both A and C are corret answer
What is the angle that the given vector makes with y-axis and A=2i+3j ?
A. 30°
B. 60°
C. 90°
D. 120°
If A=B, which of the following is not correct ?
A. A.B = A^ B^
B. |A| = |B|
C. |A^| = |B^|
D. AB^ = BA^
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
The unit vector in the direction of vector A = 2 i^ -2j^ + k^ is_______________?
A. 2i^ – 2j^ + k^
B. (2i^ – 2j^ +k^)/9
C. (2i^ – 2j^ +k^)/3
D. (2i^ – 2j^ +k^)/5
A central force is that which__________________?
A. Can produce torque
B. Cannot produce torque
C. Some time can produce torque some time cannot
D. Has no relation with torque
Cosθi^ + Sinθj^ is a_________________?
A. Vector
B. Position Vector
C. Vector in the direction at angle θ with an x-axis
D. The unit vector in the direction at angle θ with an x-axis
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