SUMMARY
Two trains, one measuring 200 meters and traveling at 40 km/hr, and the other measuring 150 meters and traveling at 45 km/hr, are running on parallel tracks in the same direction. To determine the time it takes for them to cross each other, one must calculate their relative speed and initial distance apart. The relative speed is the difference in their speeds, which is 5 km/hr. Using the formula for speed, distance, and time, the time to cross each other can be calculated based on their combined lengths and relative speed.
PREREQUISITES
- Understanding of relative speed concepts
- Familiarity with basic physics equations (speed = distance/time)
- Knowledge of unit conversions (km/hr to m/s)
- Ability to perform basic arithmetic calculations
NEXT STEPS
- Calculate the relative speed of two objects moving in the same direction
- Learn how to convert speed units from km/hr to m/s
- Explore problems involving relative motion in physics
- Study the concept of displacement in motion scenarios
USEFUL FOR
Students studying physics, educators teaching motion concepts, and anyone interested in solving relative motion problems involving trains or similar scenarios.