What is the purpose of central ideas in a text?

Central idea is also known as main idea.The central idea in a piece of writing is the point that the author wants you to remember most. Some writers may state the main idea, but it is often implied, which means the reader has to make inferences about it.

the boy's acceleration toward the girl is 2.08 m/s^2.

explanation:

according the newton's third law, the force causing the girl accelerate towards the boy will be me with equal counter-force causing the boy to accelerate towards the girl. these forces will be of equal magnitude and allows us to determine the boy's acceleration:

the boy's acceleration toward the girl is 2.08 m/s^2.

1. ( 3rd option ) peter gets into a fight with the musician because they will not play a happy song for him.

2. ( 2nd option) petty arguments like feuds lead to pointless tragedy .