College Physics
OER 2016 Edition
ISBN: 9781947172173
Author: OpenStax
Publisher: OpenStax College
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Chapter 2, Problem 63PE
To determine
The displacement graph for the subway shuttle train.
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Your car is parked at the high school. After school you take off and travel for 27 km towards lowaCity. At this point, you realize you forget your wallet and travel back to Tipton for 15 km beforeyou find your wallet was just on the floor. You turn back and head towards lowa city for 36 km.What is your displacement?
Your car is parked at the high school. After school you take off and travel for 27 km towards lowa City. At this point, you realize you forget your wallet and travel back to Tipton for 15 km before you find your wallet was just on the floor. You turn back and head towards low city for 36 km. What is your displacement?
Given the equation of the displacement x of a certain object at any time t x = 2t + 3t² + 10, in meter
a. What is the velocity of the object at time t = 5 seconds?
b. What is the acceleration of the object at time t = 10 seconds?
Note: Velocity is the first derivative of displacement. Acceleration is the second derivative of displacement.
Chapter 2 Solutions
College Physics
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- When jumping, a flea accelerates at an astounding 1,000 m/s2 , but over only the very short distance of 0.5 mm. If a flea jumps straight up, and if air resistance is neglected (a rather poor approximation in this situation), how high does the flea go (write your answer in centimeters)? Acceleration due to gravity g= 9.8 m/s2.arrow_forwardYou travel 1000 m in 25 seconds, accelerating the whole time at a constant rate. What is the rate of acceleration? Initial velocity (vi) = 0 m/s. Hint: Look at the kinematic equations!arrow_forwardThe Beretta Model 92S (the standard-issue U.S. army pistol) has a barrel 127 mmmm long. The bullets leave this barrel with a muzzle velocity of 349 m/sm/s. 1) What is the acceleration of the bullet while it is in the barrel, assuming it to be constant? Express your answer in meters per second squared. 2) What is the acceleration of the bullet while it is in the barrel, assuming it to be constant? Express your answer as a multiple of acceleration due to gravity g. 3) For how long is the bullet in the barrel? Express your answer in seconds.arrow_forward
- Joe takes his dog to the local dog park every morning, too. He walks with his dog blocks south, 5 blocks west, and 5 blocks north in order to get to the park. What is his total displacement?arrow_forwardIn Lab #3, you used a kinematic equation to find the displacement of the falling tennis ball given the time it had fallen. Neglecting air resistance, if a coin is dropped from the top of a building and takes 4.6 seconds to hit the ground, what is the height of the building (in meters)?arrow_forwardA ball on a table rolls 50 cm to the tables edge, drops 30 cm to the ground, and then continues to roll for 75 cm until eventually coming to a stop. What is the magnitude and direction of the ball’s displacement, in cm (that is, how far is it from where it started)? Use a drawing with variables clearly labeledarrow_forward
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Position/Velocity/Acceleration Part 1: Definitions; Author: Professor Dave explains;https://www.youtube.com/watch?v=4dCrkp8qgLU;License: Standard YouTube License, CC-BY