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How to breathe in 1000m running? What should you do in 1000m running? Make it easy to run
Junior high school sports meeting, running 1000 meters, 400 meters, 200 meters speech
To the 1000m athletes
Every drop of sweat, floating on the green field,
With vigorous steps, playing out the music of hope
A variety of beliefs, on the blue sky,
With your deep eyes, draw a beautiful arc
How many times in life?
Thousands of eyes are watching you,
In order to hope, in order to win, run out of the dream of youth
Praise 400 meter athletes:
On the red corridor there are two arcs,
On the green field, with your brightness,
Draw two circles of life,
Won numerous heartfelt surprises
Take a different life melody,
Play an extraordinary song!
Your performance field, let you roam freely!
Your take-off field, stretch your wings!
To 200m athletes
The playground in autumn was so beautiful that it was almost hopeless
You squat on the starting line
Every muscle is stubborn enough to hold up like a statue, slowly and slowly
You raised your head, and your firm eyes were filled with greed and sweat, and your hair finally flew up
Go on, go on, turn into a brave eagle and look for the sun in my heart
For two objects moving in a straight line at a constant speed, the speed of a is 2 meters per second, and that of B is 3 meters per second. The time that they pass through the same distance is? The time that they pass through the same distance is? The time that they pass through the same distance is?
The time ratio of the same journey is 3 / 2
In the same time, the ratio of their distance is 2:3
It takes three minutes for an object moving in a straight line at a uniform speed to travel 360 meters. If it moves at this speed, how long does it take to travel 1.8 kilometers?
The speed of the object is v = s1t1 = 360m3 × 60s = 2m / s. The time taken for the object to pass 1.8km is T2 = S2V = 1800m2m / S = 900s = 15min. A: according to this speed, it takes 15min to pass 1.8km
RELATED INFORMATIONS
- 1. The speed of an object moving in a uniform straight line is 108 kilometers per second. What is the distance of the object in 20 minutes? When it is 1800 meters, how long does it take
- 2. If the train between a and B stops at three stations, there will be______ Different fares (same round-trip fare) need to be prepared______ I want to buy a ticket
- 3. If the train between a and B stops at three stations, there will be______ Different fares (same round-trip fare) need to be prepared______ I want to buy a ticket
- 4. How many different fares are there for a passenger train between a and B stopping at two stations
- 5. How many different fares are there? How many kinds of tickets do you need to prepare?
- 6. If the train between a and B stops at three stations, there will be______ Different fares (same round-trip fare) need to be prepared______ I want to buy a ticket
- 7. From a to B, it took 6 hours to go and 111 hours to return A. 211B. 50%C. 12D. 111
- 8. When someone walks from a to B, there are regular buses between a and B, and the departure intervals between the two places are equal. He finds that a bus to a comes every 6 minutes, and a bus to B comes every 12 minutes. How many minutes does the bus leave from their respective departure station?
- 9. When a bus arrives at a station, 4 / 7 of all passengers get off and 33 passengers come up. At this time, the number of passengers on the bus is 5 / 6 of the original number. How many passengers are there?
- 10. A and B leave from station AB at the same time. For the first time, they meet at 90km away from station A. after meeting, they continue to drive at the same speed and return to each other's place of departure immediately. For the second time, they meet at 50km away from station a to find the distance between two places
- 11. Xiao Ming climbs up a high mountain and walks 4 kilometers an hour up the mountain and 6 kilometers an hour down the mountain to find the average speed up and down the mountain Walking 4 kilometers an hour up the mountain and 6 kilometers an hour down the mountain is the way back up the mountain
- 12. The following charts are 10 data extracted from the results of boys' 1000m running and girls' 800m running Boys No.1 and No.10 start running around the 400 meter track in the same direction at the same time. Can they meet for the first time in the 1000 meter run? If they can, find out the time required; if they can't, explain the reason. (boys No.1 score 3'10, boys No.10 score 3'55) Suppose that after X minutes, No. 1 and No. 10 can meet for the first time in the 1000 meter race 1000 /(35/ 60) x-1000 /3(55/ 60) x=400 ∴300x=1739 ∴x≈5.8 5 ′ 48 ″ > 3 ′ 05 ″, Candidates 1 and 10 cannot meet for the first time in the 1000 meter race In the process of solving this problem, why 1000 / (35 / 60) x-1000 / 3 (55 / 60) x = 400, x = 400? How did it come from?
- 13. A train from a to B, two hours 120 kilometers, with the same speed, from B to C 720 kilometers, in () hours? ①12 ②11 ③10
- 14. The speed ratio of the express train to the local train is 5:3. It takes 12 hours for the express train to leave from place a to place B Never: two trains leave from a and B at the same time. They run in opposite directions. The speed ratio of the express train to the local train is 5:3. It takes 12 hours for the express train to leave from a to B. how many hours do they meet after they leave? I'm in a hurry. There must be a result in 2 hours
- 15. The two fast and slow trains run opposite each other from a and B. the slow train takes 8 hours from a to B, which is 1 / 3 longer than the fast train from B to A. if the two trains leave at the same time, the fast train will travel 48 kilometers more than the slow train when they meet. There are two ways to find the distance between a and B
- 16. One train goes from place a to place B at a speed of 40 kilometers per hour; one hour later, the other train stops It also goes from place a to place B at a speed of 50 kilometers per hour. As a result, the two trains arrive at the same time. How many kilometers are there between a and B?
- 17. The average speed of car uphill is a kilometer per hour, and the average speed of car downhill is B kilometer per hour. The distance of car uphill and downhill is s kilometer 1. How many hours does it take for the car to go up and down the mountain at a time 2. What is the average speed of the car up and down the hill 3. If a = 40 km / h, B = 60 km / h, s = 120 km, then how many hours does it take for the car to go up and down the mountain at a time? What is the average speed of the car up and down the mountain
- 18. A car goes up the mountain along a road at a speed of 10km / h, and goes down the mountain from the original road at a speed of 20km / h. The average speed of the car going up and down the mountain is () A. 403km/hB. 12.5km/hC. 14.5km/hD. 15km/h
- 19. A mountain road is 15 kilometers long. A car goes up the mountain 30 kilometers per hour, and goes down the mountain 50 kilometers per hour from the original road
- 20. The speed of a car going up the mountain from a to B is 30km / h, and the speed going down the mountain is 42km / h. find the average speed of the car going up and down the mountain