identical except for the color, move toward each other in adjacent lanes and parallel to an x axis. At time t = 0, the red car is at x, = 0 and the green car is at x, = 220 m. If the red car has a constant velocity of 20 km/h, the cars pass each other at x = 44.5 m, and if it has a constant velocity of 40 km/h, they pass each other at x = 76.6 m. What are (a) the initial velocity and (b) the constant

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Chapter1: Units, Trigonometry. And Vectors
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-------*34 In Fig.2-27, a red car and a green car, identical except for the color, move toward each other in adjacent lanes and parallel to an x axis. At time t = 0, the red car is at x, = 0 and the green car is at x, = 220 m. If the red car has a constant velocity of 20 km/h, the cars pass each other at x = 44.5 m, and if it has a constant velocity of 40 km/h, they pass each other at x = 76.6 m. What are (a) the initial velocity and (b) the constant acceleration of the green car?-----I GOT THIS PART!!! THIS IS A REFERENCE.

Drawing pictures often helps with visualizing and solving physics problems. They don't have to be
accurate in terms of artistic quality (stick figures are just fine), but they should be somewhat accurate
in terms of relative lengths and directions.
Draw the scenario that exists at time t = 0. Include vectors for each car indicating each car's velocity
(since the red car has 2 possible velocities, just choose and draw its first speed). Since the green car's
velocity isn't known just draw its vector's length as a guess, and label it 'v,'.
Label x = 0, x = 44.5[m], x = 76.6[m] and x = 220[m] on your diagram above.
%3D
%3D
Think about how you would start solving this problem. Can you think of a way to break this problem
up into two parts? Write down any ideas you have about how the solution to this problem might be
organized or simplified.
What unknowns are we asked to find?
Transcribed Image Text:Drawing pictures often helps with visualizing and solving physics problems. They don't have to be accurate in terms of artistic quality (stick figures are just fine), but they should be somewhat accurate in terms of relative lengths and directions. Draw the scenario that exists at time t = 0. Include vectors for each car indicating each car's velocity (since the red car has 2 possible velocities, just choose and draw its first speed). Since the green car's velocity isn't known just draw its vector's length as a guess, and label it 'v,'. Label x = 0, x = 44.5[m], x = 76.6[m] and x = 220[m] on your diagram above. %3D %3D Think about how you would start solving this problem. Can you think of a way to break this problem up into two parts? Write down any ideas you have about how the solution to this problem might be organized or simplified. What unknowns are we asked to find?
Green
x,
car
Red
*g
car
Figure 2-27 Problems 34 and 35.
Transcribed Image Text:Green x, car Red *g car Figure 2-27 Problems 34 and 35.
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