The unit of thrust is:

1. kgf
2. kg
3. g
4. m s^-1

The pressure and thrust are related as:

1. Pressure = Thrust
2. Pressure = Thrust x Area
3. Pressure = $\dfrac{\text{Thrust}}{\text{Area}}$
4. Pressure = $\dfrac{\text{Area}}{\text{Thrust}}$

A body weighing 5 kgf, placed on a surface of area 0.1 m², exerts a thrust on the surface equal to:

1. 50 kgf
2. 5 kgf
3. 50 kgf m^-2
4. 5 kgf m^-2

To obtain a given moment of force for turning a body, the force needed can be decreased by:

1. applying the force at the pivoted point.
2. applying the force very close to the pivoted point.
3. applying the force farthest from the pivoted point.
4. none of the above.