Physics
Vectors and Equilibrium
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#113 If a body is in linear equilibrium, it means:
A) $\sum F_x=0$
B) $\sum F_y=0$
C) Its velocity is constant or zero
D) All of these
#114 A body in equilibrium can have a non-zero:
A) Velocity
B) Acceleration
C) Net force
D) Net torque
#115 The first condition of equilibrium is also known as the condition for:
A) Rotational equilibrium
B) Translational equilibrium
C) Static equilibrium
D) Dynamic equilibrium
#116 A ladder resting against a wall is an example of:
A) Static equilibrium
B) Dynamic equilibrium
C) Unstable equilibrium
D) Neutral equilibrium
#117 A ball rolling on the ground at a constant speed is an example of:
A) Static equilibrium
B) Dynamic equilibrium
C) Unstable equilibrium
D) Neutral equilibrium
#118 The moment of a couple depends on:
A) The magnitude of the force
B) The perpendicular distance between the forces
C) Both A and B
D) The point of application
#119 The direction of a vector is independent of its:
A) Magnitude
B) Components
C) Unit vector
D) Tail
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