Atrain 471 m long is moving on a straight track with a speed of 75.1 km/h. the engineer applies the brakes at a crossing, and later the last car passes the crossing with a speed of 15 km/h. assuming constant acceleration, determine how long the train blocked the crossing. disregard the width of the crossing. answer in units of s.

Explanation:

As we know that train is initially moving with the speed

now we know that

now the final speed of the train when it crossed the crossing

now we can use kinematics here

Now the time to cross that junction is given as

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