You are waiting at a traffic light on Manchester Expressway. At the instant the traffic light runs green, your car (a Toyota Rav4) that has been waiting at an intersection starts ahead with a constant acceleration of 3.17 m/s2. At the same instant a truck (a Ford Ranger), traveling with a constant speed of 20.2 m/s, overtakes and passes you. How far beyond the traffic light do you overtake the truck? Your Answer: Answer
Displacement, Velocity and Acceleration
In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.
Linear Displacement
The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.
![**Problem Statement:**
You are waiting at a traffic light on Manchester Expressway. At the instant the traffic light runs green, your car (a Toyota Rav4) that has been waiting at an intersection starts ahead with a constant acceleration of 3.17 m/s². At the same instant, a truck (a Ford Ranger), traveling with a constant speed of 20.2 m/s, overtakes and passes you. How far beyond the traffic light do you overtake the truck?
**Your Answer:**
[Answer Box]
**Explanation:**
This problem involves understanding and applying the principles of kinematics. Here we have two vehicles starting from the same point but with different motions:
1. The Toyota Rav4 starts from rest and accelerates at a constant rate.
2. The Ford Ranger travels at a constant speed.
We'll need to set up equations that describe the motion of both vehicles and find the point at which the distances covered by the two vehicles are equal.
**Approach:**
1. **Toyota Rav4 (accelerating):**
- Initial velocity (\( u \)) = 0 m/s (since it starts from rest)
- Acceleration (\( a \)) = 3.17 m/s²
- Distance traveled (\( s_{\text{car}} \)) after time (\( t \)) can be found using the equation:
\[ s_{\text{car}} = ut + \frac{1}{2}at^2 \]
\[ s_{\text{car}} = 0 + \frac{1}{2} \cdot 3.17 \cdot t^2 \]
\[ s_{\text{car}} = 1.585 \cdot t^2 \]
2. **Ford Ranger (constant speed):**
- Constant speed (\( v \)) = 20.2 m/s
- Distance traveled (\( s_{\text{truck}} \)) after time (\( t \)) is:
\[ s_{\text{truck}} = v \cdot t \]
\[ s_{\text{truck}} = 20.2 \cdot t \]
3. **Equating the distances:**
- Set the distance equations equal to find the time when the Toyota Rav4 overtakes the truck:
\[ 1.585 \cdot t^2 = 20.2 \cdot t](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fabba9b7b-e11d-45ba-8e6e-6333a2d61c5d%2F9f3066fd-7258-4b36-a487-53c82a00de6d%2Fxuczd2j_processed.jpeg&w=3840&q=75)

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