A wheelbarrow is loaded as shown in Figure.

Calculate the force exerted by the ground on the legs of the wheelbarrow (taken both together) when the gardener is not holding the handles.

A traditional pair of scales uses sliding masses of $10 \mathrm{g}$ and $100 \mathrm{g}$ To achieve a balance. A diagram of the arrangement is shown in Figure. The bar itself is supported with its centre of gravity at the pivot. Calculate the value of the mass $\mathrm{M}$, attached at $\mathrm{X}$.

A traditional pair of scales uses sliding masses of $10 \mathrm{g}$ and $100 \mathrm{g}$ to achieve a balance. A diagram of the arrangement is shown in Figure. The bar itself is supported with its centre of gravity at the pivot. Determine the upwards force of the pivot on the bar.

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 $H$ ?