
The figure shows a wheelbarrow with a heavy load of soil. Add an arrow to show how you could lift the left-hand end of the barrow with the smallest force possible. Remember to indicate clearly the direction of the force.


Important Questions on Turning Effects
The figure shows a wheelbarrow with a heavy load of soil.
How do you know that the wheelbarrow is in equilibrium?

In the given diagram shows a beam balanced on a pivot. Add arrows to show the following forces:
A force pressing downwards on the beam that will have the greatest possible clockwise turning effect. Label this force .
A force pressing downwards on the beam that will have an anticlockwise turning effect equal in size to the turning effect of force . Label this force .

For the situations in figure, calculate the missing distance so that the beams are in equilibrium.

For the situations in the figure, calculate the missing distance so that the beams are in equilibrium.

For the situations in the figure, calculate the missing force so that the beams are in equilibrium.

State and explain the condition that means an object will topple (fall over).

Decide whether each object will fall over. Explain your answer.

Explain, using your knowledge of stability, which of the two cars in figure you would expect to be able to go around a corner at the highest speed, whilst keeping all its wheels on the road.
