Physics for Scientists and Engineers 10th Edition · Motion in One Dimension · Problem 24
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Serway & Jewett — Motion in One Dimension: Problem 24
You are observing the poles along the side of the road as described in the opening storyline of the chapter. You have already stopped and measured the distance between adjacent poles as 40.0 m. You are now driving again and have activated your smartphone stopwatch. You start the stopwatch at t = 0 as you pass pole #1. At pole #2, the stopwatch reads 10.0 s. At pole #3, the stopwatch reads 25.0 s. Your friend tells you that he was pressing the brake and slowing down the car uniformly during the entire time interval from pole #1 to pole #3. (a) What was the acceleration of the car between poles #1 and #3? (b) What was the velocity of the car at pole #1? (c) If the motion of the car continues as described, what is the number of the last pole passed before the car comes to rest?
📝 풀이 접근법
주어진 조건: 40.0 m
구하는 것: (a) What was the acceleration of the car between poles #1 and #3; (b) What was the velocity of the car at pole #1?; (c) If the motion of the car continues as described
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Physics for Scientists and Engineers · 10th Edition
저자: Serway & Jewett
출판사: Cengage
단원: Motion in One Dimension