A red car and a green car move towards each other; below we see a graph of their motion. At t 0 seconds, their positions are xred at o = -30m (the blue line on the graph) and xgreen at o = 490m (the red line on the graph). The green car has a constant speed of 35 , and the red car starts from rest. What is the acceleration of the red car? Green Car Red car 12 (s) (u) x

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter3: Motion Along A Straight Line
Section: Chapter Questions
Problem 114CP: A cyclist sprints at the end of a race to clinch a victory. She has an initial velocity of 11.5 m/s...
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A red car and a green car move towards each other; below we see a graph of their motion. Att =0
seconds, their positions are xred at o = -30m (the blue line on the graph) and Xgreen at o
red line on the graph). The green car has a constant speed of 35, and the red car starts from rest.
= 490m (the
What is the acceleration of the red car?
Green
Car
Red
car
12
I(s)
True or False: The instantaneous value of a velocity vs. time graph is the slope of the corresponding
position vs, time graph.
. True or False: If you calculate the area under the line of a velocity vs. time graph it equals the distance
the object moved.
5. True or Ealse: The instantaneous slope of a velocity vs. time graph is the acceleration at that moment.
J. True or False: If you calculate the area under the line of an acceleration vs. time graph it equals the
velocity of the object.C
8. a. A quarterback throws the ball towards his receiver. At the very top of the ball's arc, what is the
velocity of the vertical component of the ball?
b. In one word, what direction is the ball being accelerated during its entire time in the air?
() x
Transcribed Image Text:A red car and a green car move towards each other; below we see a graph of their motion. Att =0 seconds, their positions are xred at o = -30m (the blue line on the graph) and Xgreen at o red line on the graph). The green car has a constant speed of 35, and the red car starts from rest. = 490m (the What is the acceleration of the red car? Green Car Red car 12 I(s) True or False: The instantaneous value of a velocity vs. time graph is the slope of the corresponding position vs, time graph. . True or False: If you calculate the area under the line of a velocity vs. time graph it equals the distance the object moved. 5. True or Ealse: The instantaneous slope of a velocity vs. time graph is the acceleration at that moment. J. True or False: If you calculate the area under the line of an acceleration vs. time graph it equals the velocity of the object.C 8. a. A quarterback throws the ball towards his receiver. At the very top of the ball's arc, what is the velocity of the vertical component of the ball? b. In one word, what direction is the ball being accelerated during its entire time in the air? () x
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