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Formulas of Encounter Problem and Pursuit Problem
(1) Meeting?

Meeting distance = speed and × meeting time?

Meeting time = meeting distance/speed and?

Speed sum = meeting distance ÷ meeting time?

(2) Tracking the problem

Catch-up distance = speed difference × catch-up time?

Catch-up time = catch-up distance ÷ speed difference?

Speed difference = catching distance ÷ catching time

Extended data:

Two objects start from two places and walk in opposite directions. After some time, they are bound to meet on the road. This kind of problem is called meeting problem. The problem of meeting is to study the relationship between speed, time and distance.

Two objects start from two places and walk in opposite directions. After some time, they are bound to meet on the road. This kind of problem is called meeting problem. 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.

Formulas can be used directly for problems with simple ideas and methods, and formulas can be used after modification for complex problems.

References:

Baidu Encyclopedia-Encountered Problems