Question #2: A Tesla Model 3 is driving down Bank Street in Ottawa, Ontario. It is driving along with zero acceleration. A pedestrian, without looking, runs into the road right in front of the oncoming Model 3. The Forward Collision Warning sounds, and the Automatic Emergency Braking software comes into affect, applying the brakes to avoid hitting the pedestrian. The Model 3 applies the brakes until the pedestrian makes it to the other side of the road, and then the driver accelerates to reach the Model 3's original driving speed of 54 [km/h]. Based on following graph, we assume 1) when x = 0, t = 0 2) when 0 < t< 1, the acceleration is zero. 3) At t= 1 s, the braking system is activated. Determine: a) The time, t,, when the Model 3 re-achieves its initial velocity (54 [km/h]) b) The position of the Model 3 at that time (t,) (roughly draw the v-t curve) c) The average velocity of the car during the interval: (1
Question #2: A Tesla Model 3 is driving down Bank Street in Ottawa, Ontario. It is driving along with zero acceleration. A pedestrian, without looking, runs into the road right in front of the oncoming Model 3. The Forward Collision Warning sounds, and the Automatic Emergency Braking software comes into affect, applying the brakes to avoid hitting the pedestrian. The Model 3 applies the brakes until the pedestrian makes it to the other side of the road, and then the driver accelerates to reach the Model 3's original driving speed of 54 [km/h]. Based on following graph, we assume 1) when x = 0, t = 0 2) when 0 < t< 1, the acceleration is zero. 3) At t= 1 s, the braking system is activated. Determine: a) The time, t,, when the Model 3 re-achieves its initial velocity (54 [km/h]) b) The position of the Model 3 at that time (t,) (roughly draw the v-t curve) c) The average velocity of the car during the interval: (1
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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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.
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![Question #2:
A Tesla Model 3 is driving down Bank Street in Ottawa, Ontario. It is driving along with zero
acceleration. A pedestrian, without looking, runs into the road right in front of the oncoming Model
3. The Forward Collision Warning sounds, and the Automatic Emergency Braking software comes
into affect, applying the brakes to avoid hitting the pedestrian. The Model 3 applies the brakes
until the pedestrian makes
the Model 3's original driving speed of 54 [km/h]. Based on following graph, we assume
to the other side of the road, and then the driver accelerates to reach
1) when x = 0, t = 0
2) when 0 < t < 1, the acceleration is zero.
3) At t= 1 s, the braking system is activated.
Determine:
a) The time, t,, when the Model 3 re-achieves its initial velocity (54 [km/h])
b) The position of the Model 3 at that time (t,) (roughly draw the v-t curve)
c) The average velocity of the car during the interval: (1 < t < t;) [s]
Use the following acceleration profile.
2
1
t(s)
4.5
-2
-4
-6
a [m/s?]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffffe4724-3c97-4973-84d9-1586aee025f2%2F9bf49bfb-8d74-4ebe-b693-0ea7b06cf35b%2Fxz3op6p_processed.png&w=3840&q=75)
Transcribed Image Text:Question #2:
A Tesla Model 3 is driving down Bank Street in Ottawa, Ontario. It is driving along with zero
acceleration. A pedestrian, without looking, runs into the road right in front of the oncoming Model
3. The Forward Collision Warning sounds, and the Automatic Emergency Braking software comes
into affect, applying the brakes to avoid hitting the pedestrian. The Model 3 applies the brakes
until the pedestrian makes
the Model 3's original driving speed of 54 [km/h]. Based on following graph, we assume
to the other side of the road, and then the driver accelerates to reach
1) when x = 0, t = 0
2) when 0 < t < 1, the acceleration is zero.
3) At t= 1 s, the braking system is activated.
Determine:
a) The time, t,, when the Model 3 re-achieves its initial velocity (54 [km/h])
b) The position of the Model 3 at that time (t,) (roughly draw the v-t curve)
c) The average velocity of the car during the interval: (1 < t < t;) [s]
Use the following acceleration profile.
2
1
t(s)
4.5
-2
-4
-6
a [m/s?]
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