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Two equal but unlike parallel forces have a different line of action produced.
The number of forces that can be added by head to the tail rule is:
The number of perpendicular components of a force is:
A force of 10 N is making an angle of 30⁰ with the horizontal. Its horizontal component will be:
A couple is formed by:
Two forces perpendicular to each other
Two like parallel forces
Two equal and opposite forces in the same line
Two equal and opposite forces not in the same line
A body is in equilibrium when its:
Acceleration is uniform
Speed is uniform
Speed and acceleration are uniform
Acceleration is zero
A body is in neutral equilibrium when its center of gravity:
Is at its highest position
Is at its lowest position
Keeps its height if displaced
Is situated at its bottom
Racing cars are made stable by:
Increasing their speed
Decreasing their mass
Decreasing their width
Lowering their centre of gravity
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