1. A student practicing for a cross country meet runs 250 m in 30 s. What is her average speed? 2. What is the velocity of a car that traveled a total of 75 km north in 1.5 hours? 3. A space shuttle orbits Earth at a speed of 21,000km/hr How far will it travel in 5 hours? 4. What is the velocity of a plane that traveled 3,000 miles from New York to California in 4.5 hours 5. A school bus moves at speed of 35mi/hr for 20 miles. How long will it take the bus to get to s 6. If it takes 3.5 hours for the Hogwarts Express, moving at a speed of 120mi/hr to make it fr 9 and 3/4 to Hogwarts, how far apart are they? 1. How long would it take for a car to travel 200 km if it has an average speed of 55km/hr

1. To find the average speed, we can use the formula: average speed = total distance / total time. In this case, the student runs 250 m in 30 s. So, the average speed is 250 m / 30 s = 8.33 m/s.<br /><br />2. To find the velocity, we can use the formula: velocity = total distance / total time. In this case, the car traveled 75 km north in 1.5 hours. So, the velocity is 75 km / 1.5 hours = 50 km/hr north.<br /><br />3. To find the distance traveled by the space shuttle, we can use the formula: distance = speed × time. In this case, the space shuttle orbits Earth at a speed of 21,000 km/hr for 5 hours. So, the distance traveled is 21,000 km/hr × 5 hours = 105,000 km.<br /><br />4. To find the velocity of the plane, we can use the formula: velocity = total distance / total time. In this case, the plane traveled 3,000 miles from New York to California in 41.5 hours. So, the velocity is 3,000 miles / 41.5 hours = 72.34 miles/hr.<br /><br />5. To find the time it takes for the school bus to get to its destination, we can use the formula: time = total distance / speed. In this case, the school bus moves at a speed of 35 mi/hr for 20 miles. So, the time it takes is 20 miles / 35 mi/hr = 0.57 hours or approximately 34.29 minutes.<br /><br />6. To find the distance between the two locations, we can use the formula: distance = speed × time. In this case, the Hogwarts Express moves at a speed of 120 mi/hr for 3.5 hours. So, the distance is 120 mi/hr × 3.5 hours = 420 miles.<br /><br />7. To find the time it takes for the car to travel 200 km, we can use the formula: time = total distance / speed. In this case, the car has an average speed of 55 km/hr. So, the time it takes is 200 km / 55 km/hr = 3.64 hours or approximately 3 hours and 38 minutes.