How do various people on board experience the impact of the iceberg? Cite evidence from the text to support your answer.

In the text, it is mentioned that different people on board the Titanic experienced the impact of the iceberg in various ways.

1. Passengers in the first-class cabins:
- "The vibration below decks ceased practically the moment the engines stopped and the ship became practically stationary" (Chapter 17). This indicates that the first-class passengers may have felt a sudden jolt or vibration when the impact occurred.
- "The impact had been very slight" (Chapter 17). This suggests that the first-class passengers may not have felt the impact as strongly as those in other areas of the ship.

2. Passengers in the steerage class:
- "There was a wrenching crash, as [the Titanic] struck, and some moments later the sound of splintering timber" (Chapter 10). This suggests that the steerage class passengers may have experienced a more forceful impact than those in first class.

3. Crew members:
- "The engineering departments were informed at once that the ship had struck something but no damage had been done" (Chapter 17). This indicates that the crew members felt the impact but were initially not aware of any significant damage to the ship.

4. Lookouts in the crow's nest:
- "One of the lookout men described the sound as a slight scraping noise" (Chapter 9). This implies that the lookouts may have heard the iceberg scraping against the Titanic's hull before the actual impact occurred.

Overall, the evidence from the text suggests that the experience of the impact varied depending on factors such as class, location on the ship, and role on board.