1) A balancing toy (blue) is balanced upon a triangular base (red).

When the toy is pushed slightly to one side, it remains in its new position.

Where is the centre of gravity of the balance toy?

2) A balancing toy (blue) is balanced upon a triangular base (red).

When the toy is pushed slightly to one side, it swings back to its original position.

Where is the centre of gravity of the balance toy?

3) The figure below represents a uniform lamina with two shaded portions cut out. In which quadrant is the centre of gravity of the remaining portion?

4) A television is held onto a wall by two brackets, as shown.

Which diagram correctly shows the forces on the television from the brackets.

5) A light uniform metre rule is held horizontal by two strings which have tensions T₁ and T₂. Two forces of 25 N and 70 N act at the 15 cm and 75 cm marks respectively. What is the magnitude of T₁ and T₂?