The problem of meeting is to study the relationship between speed, time and distance. It is different from the general travel problem in that it is not the movement of an object, so the speed it studies includes the speed of two objects, that is, the sum of speeds.
The relationship between encounter problems is: speed and × encounter time = distance; The sum of distance and speed = meeting time; Distance ÷ Meeting time = speed and.
Extended data:
Matters needing attention in answering occasional questions:
1, to solve this kind of problem, we need to understand the meaning of the question, draw a line diagram according to the meaning of the question, analyze the relationship between the quantities, and choose the solution method.
2. In addition to finding out the distance, speed and meeting time, we should also pay attention to some important issues when reviewing the questions: whether to start at the same time, and if anyone in the questions starts first, remove the first distance and find out the distance to walk at the same time.
3. Driving in the opposite direction, the same direction or the opposite direction. The direction of solving the problem is different. Whether to meet or not, the driving objects of some topics have not met, and the distance between them should be removed; Some problems are that the two are omitted, and the distance of multiple lines must be added up to get the distance of simultaneous driving.
Baidu Encyclopedia-Encountered Problems