Two trains- one travelling at 72km/hr and other at 90km/hr are heading towards one another along a straight level track. When they are 1.0 km apart, both the drivers simultaneouly see the each other's train and apply brakes which retard each train at the rate of 1.0m/s*2. Determine whether the trains would collide or not and at what distance the train will stop after the brakes are apllied?
Since they are 1 km i.e. 1000 m apart and sum of both their distance is less than 1000 m, they would stop before time.
There would no collision.