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Ответы на вопросы:
1. What is a force? Give its unit; 2. A book is resting on a table
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9 заданий
1. What is a force? Give its unit and two examples of forces that act without contact.
2. A book is resting on a table. Name the two main forces acting on it and explain why it does not accelerate.
3. A cyclist travels 180 m in 12 s. Calculate the average speed in m/s.
4. A car moves at a constant 15 m/s for 40 s. How far does it travel?
5. A runner covers 2.4 km in 12 minutes. Calculate the average speed in m/s. Show unit conversions.
6. On graph paper, plot distance (vertical axis) against time (horizontal axis). Join consecutive points with straight line
7. Calculate the speed from 0–4 min in m/min, then convert it to m/s.
8. What is happening between 4 and 6 minutes? How does the graph show this?
9. Calculate the speed from 6–10 minutes. Is it faster or slower than from 0–4 minutes?
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