P 2.37A train is traveling down a straight track at 20 m/ s when the engineer applies the brakes, resulting in anacceleration of - 1 .0 m/s2 as long as the train is in motion. How far does the train move during a 40-s timeinterval starting at the instant the brakes areapplied?-P 2.45A ball is thrown vertically upward with a speed of 25.0 m/s. (a) How high does it rise? (b) How long dit take to reach its highest point? (c) How long does the ball take to hit the ground after it reaches itshighest point? (d) What is its velocity when it returns to the level from which it started?P 2.47A certain freely falling object, released from rest, requires 1.50s to travel the last 30.0 m before it hitsground. (a) Find the velocity of the object when it is 30.0 m above the ground. (b) Find the total distathe object travels during the fall.

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When I did p 2.37 I got zero but that is not the correct answer. I need help.

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Step 1

Write the expression for distance travelled under constant acceleration

Step 2

Substituting the values

Step 3

This can’t be the case. Thus, the time required for the train to co...

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