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3. Suppose a person walk 80 m east and then 50 m west. What is the person's average velocity? (At = 15mins)

3. Suppose a person walk 80 m east and then 50 m west. What is the person's average velocity? (At = 15mins)

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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1. A 20.0 kg object that can move freely is subjected to a resultant force of 45.0 N in the -x direction. Find the acceleration of the body. 2. A boat has a mass of 6800kg. Its engines generate a drive force of 4100 N due to west, while exerts a force of 800 N east and the water exerts a resistive force of 1200 N due east. What is the magnitude of the boat's acceleration? 3. Suppose a person walk 80 m east and then 50 m west. What is the person's average velocity? (At 15mins) 4. In 5 s a truck increases its speed from 50 km/h to 70 km/h while a car goes from rest to 20 km/h. Which undergoes greater acceleration? What it its acceleration?
Transcribed Image Text:1. A 20.0 kg object that can move freely is subjected to a resultant force of 45.0 N in the -x direction. Find the acceleration of the body. 2. A boat has a mass of 6800kg. Its engines generate a drive force of 4100 N due to west, while exerts a force of 800 N east and the water exerts a resistive force of 1200 N due east. What is the magnitude of the boat's acceleration? 3. Suppose a person walk 80 m east and then 50 m west. What is the person's average velocity? (At 15mins) 4. In 5 s a truck increases its speed from 50 km/h to 70 km/h while a car goes from rest to 20 km/h. Which undergoes greater acceleration? What it its acceleration?
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