Question

a car driver traveling with a uniform velocity of 2m/s notices a railway crossing at a distance of 435m from him and also he notices that it is going to be closed in 10 seconds .first he decides to cross the level crossing hence a acceleration his car at rate of 2ms for five seconds.then he decides to stop the car.so he applied brake and stop car exactly before the level crossing (without following the timer). calculate the minimum rate at which he had to decelerate the car so that he stops the car exactly before the level crossing​

Answer 1

Explanation:

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