Practise defining centre of gravity as the point through which weight acts, locating it for uniform objects, and applying the idea to balance and stability.
A radio transmitter is a very tall, thin cylinder. It is prevented from falling over by wires which have one end fixed to the transmitter and the other end fixed in the ground. The ends of the wires in the ground are a long distance from the transmitter.
Fig. 4.1 shows the transmitter and two of the wires.
Fig. 4.1
The centre of gravity G is shown on Fig. 4.1.
State what is meant by centre of gravity.