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2. Sketch a distance-time graph of the situation explained below in the blank coordinate grid. A person begins to run and travels 30 meters in the first 10 seconds of his trip. He then decides to stop because running for 10 seconds was way too difficult. He only rests for 5 seconds. He then runs with a velocity of 2 m/s for 10 more seconds. He then turns around and jogs back to his original position, at a non-constant rate of change, arriving there at t=30 seconds. 450 Distance (m) 40 30 20 10 0 5 10 15 20 25 a. Calculate the average velocity of the person for the first 10 seconds of their trip. b. Would it be correct if the line from [0,10] was curved? Explain. 30 c. Calculate the average velocity of the person over the first 15 seconds of their trip. Time (s)

2. Sketch a distance-time graph of the situation explained below in the blank coordinate grid. A person begins to run and travels 30 meters in the first 10 seconds of his trip. He then decides to stop because running for 10 seconds was way too difficult. He only rests for 5 seconds. He then runs with a velocity of 2 m/s for 10 more seconds. He then turns around and jogs back to his original position, at a non-constant rate of change, arriving there at t=30 seconds. 450 Distance (m) 40 30 20 10 0 5 10 15 20 25 a. Calculate the average velocity of the person for the first 10 seconds of their trip. b. Would it be correct if the line from [0,10] was curved? Explain. 30 c. Calculate the average velocity of the person over the first 15 seconds of their trip. Time (s)

Physics for Scientists and Engineers, Technology Update (No access codes included)
Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter2: Motion In One Dimension
Section: Chapter Questions
Problem 2.73AP: Kathy tests her new sports car by racing with Sian, an experienced racer. Both start from rest, but...
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2. Sketch a distance-time graph of the situation explained below in the blank coordinate grid. A person begins to run and travels 30 meters in the first 10 seconds of his trip. He then decides to stop because running for 10 seconds was way too difficult. He only rests for 5 seconds. He then runs with a velocity of 2 m/s for 10 more seconds. He then turns around and jogs back to his original position, at a non-constant rate of change, arriving there at t=30 seconds. Distance (m) 50 +40 10 0 10 20 a. Calculate the average velocity of the person for the first 10 seconds of their trip. b. Would it be correct if the line from [0,10] was curved? Explain. C. Calculate the average velocity of the person over the first 15 seconds of their trip. d. Calculate the distance traveled by the person during the time interval [15,25] seconds. e. Calculate the speed at which the person was moving for the time interval [25,30]. f. Calculate the distance the person traveled in the first 25 second interval? Time (s) g. Calculate the distance the person traveled over the 30 second trip?
Transcribed Image Text:2. Sketch a distance-time graph of the situation explained below in the blank coordinate grid. A person begins to run and travels 30 meters in the first 10 seconds of his trip. He then decides to stop because running for 10 seconds was way too difficult. He only rests for 5 seconds. He then runs with a velocity of 2 m/s for 10 more seconds. He then turns around and jogs back to his original position, at a non-constant rate of change, arriving there at t=30 seconds. Distance (m) 50 +40 10 0 10 20 a. Calculate the average velocity of the person for the first 10 seconds of their trip. b. Would it be correct if the line from [0,10] was curved? Explain. C. Calculate the average velocity of the person over the first 15 seconds of their trip. d. Calculate the distance traveled by the person during the time interval [15,25] seconds. e. Calculate the speed at which the person was moving for the time interval [25,30]. f. Calculate the distance the person traveled in the first 25 second interval? Time (s) g. Calculate the distance the person traveled over the 30 second trip?
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