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

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

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter3: Motion In Two Dimensions

Section: Chapter Questions

Problem 42P: A landscape architect is planning an artificial waterfall in a city park. Water flowing at 1.70 m/s...

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