Figure shows a beam with four forces acting on it.

For each force, calculate the moment of the force about point $\mathrm{P}$.

Figure shows a beam with four forces acting on it.

State whether each moment is clockwise or anticlockwise.

Figure shows a beam with four forces acting on it. State whether the moments of the forces are balanced.

The driving wheel of a car travelling at a constant velocity has a torque of $137 \mathrm{Nm}$ applied to it by the axle that drives the car. The radius of the tyre is $0.18 \mathrm{m}$. Calculate the driving force provided by this wheel.

A force $F$ is applied at a distance $d$ from the hinge $H$ and an angle $x$ to the door.

What is the moment of force $F$ bout the point $H$ ?

The angle between two forces each of magnitude $5.0 \mathrm{N}$ is $120°$.

What is the magnitude of the resultant of these two forces ?

A ship is pulled at a constant speed by two small boats $\mathrm{A} \& \mathrm{B}$ as shown.

The engine of the ship does not produce any force.

The tension in each cable between $\mathrm{A}$ and $\mathrm{B}$ and the ship is $4000 \mathrm{N}$.

(Draw a free-body diagram showing the three horizontal forces acting on the ship.

A ship is pulled at a constant speed by two small boats $\mathrm{A} \& \mathrm{B}$ as shown.

The engine of the ship does not produce any force.

The tension in each cable between $\mathrm{A}$ and $\mathrm{B}$ and the ship is $4000 \mathrm{N}$.

Draw a vector diagram to scale showing these three forces and use your diagram to find the value of the drag force on the ship.