1. **State the problem:** A car travels at 60 km/h, and the tires have a circumference of 2 meters. We need to find how many complete rotations the tires make in one minute. 2. **Convert speed to meters per minute:** - Speed in km/h: 60 km/h - Convert km to meters: $60 \times 1000 = 60000$ meters per hour - Convert hours to minutes: $60000 \div 60 = 1000$ meters per minute 3. **Use the formula for rotations:** - Number of rotations = $\frac{\text{distance traveled}}{\text{circumference of tire}}$ - Here, distance traveled in one minute = 1000 meters - Circumference = 2 meters 4. **Calculate rotations:** $$\text{rotations} = \frac{1000}{2} = 500$$ 5. **Interpretation:** The tires make 500 complete rotations in one minute.