1) 2018 S4 EOY P1 Q06

The diagram below shows a uniform rectangular lamina where circles of different sizes have been cut out.

Which section does the centre of gravity of the object now lie in?

2) 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?

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 heavy uniform block is placed on the ground as shown below.

Which is the smallest force that would tilt the block?

5) 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?