4. A car is travelling at 10 m.s when the driver sees a police car. The driver brakes and decelerates at 4 m.s² for 2 seconds. After 2 seconds of braking, the driver is confident that the police have not seen him so speeds up again to his original speed in 4 seconds and then maintains his original speed.

4. A car is travelling at 10 m.s when the driver sees a police car. The driver brakes and decelerates at 4 m.s² for 2 seconds. After 2 seconds of braking, the driver is confident that the police have not seen him so speeds up again to his original speed in 4 seconds and then maintains his original speed.

Name: W Mot XDThe X G dece Xx CG dece x SS Stud XE Grac XGrac XE Grac X G m
Uploaded: 2024-03-05T11:56:34.000Z
Channel: Bartleby
Description: W Mot XDThe X G dece Xx CG dece x SS Stud XE Grac XGrac XE Grac X G mot XG net XG g to XRevi Xa classroom.google.com/u/0/c/M]Y4MTUXMDQ3MZQZ/a/MzExODMzNzQwOTQw/detailsc) What is the average velocity of each car for the first 10s?4. A car is travellin

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)...

See similar textbooks

Related questions

Q: i. A bowling ball traveling with constant speed hits the pins at the end of a bowling lane 17 m…

A: Distance travelled by the ball = 17m Total time upto hear the sound = 3.20s Speed of the sound =…

Q: 1 A car has acceleration of 1.20 m/s2 and starts from 2.50 m/s. What is its speed after 5.00…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: 1. Cars A and B are traveling respectively at the constant speeds of (v₁), = 22 mi/h and (VB) = 13…

A: Relative velocity: The relative velocity () of object relative to object is given by the…

Q: During your car ride, you travel North at a speed of 10 km/hr for 30 minutes and then South at a…

A: Given data: Speed (V1) = 10 km/hr for time (t1) = 30 minutes, in North direction Speed (V2) = 10…

Q: Two football players are on course for a head on collision, initially separated by 112 m. Player A…

Q: 3. You wake up one morning to find yourself in a strange room with opaque walls, and no visible…

A: Write the second kinematic equation. Here, h is the height, u is the initial velocity, t is the…

Q: 1. You are driving your 2015 Volkswagen Golf at night on a straight road through the woods at 60…

A: Conversion 60 mih=60mih1.61×103 mhh3600 s=26.8 ms a. From kinematic equation expression for…

Q: 5. A car drives down a straight farm road. Its position x from a stop sign is described by the…

A: CONCEPT: Given, displacement x(t) = At2-Bt3 Where A = 2.14 m/s2 and B = 0.0770 m/s3 we know,…

Q: Driving to Red Hook at night at 65 miles/hour, a Bard student sees a deer in the road 50 meters…

A: given initial speed u=65 mi/h = 0.447 * 65 =29.055 m/s acceleration a =-8 m/s distance between bear…

Q: The jet car is originally traveling at a velocity of 12 m/s when it is subjected to the acceleration…

A: Given, the initial velocity of the car is uo=12m/s and its acceleration vs time graph is Now from…

Q: 1 de 1 A vehicle drives at a constant speed of 215km/h for 42.3 seconds, accelerates by 29.4m/s2 for…

A: "Since you have asked multiple questions, as per instructions to us, we will solve the first…

Q: 3. An object's position as a function of time is given by the following formula: f(t) = {(0.25…

A: As per guidelines only 3 subparts are solved here.

Q: A spacecraft starts from rest, and makes a journey to a destination 355000 km from its starting…

Q: 1. Two heavy balls have the same diameter, but one is twice the weight of the other. They are…

Q: A car starts at a green light and accelerates at 6 m/s2. A truck passes through the same light at…

A: Sol n'' Take the green light as starting point For carInitial velocity (u1) = 0accelertion…

Q: 2. A blue cart is initially stationary. A red cart starts out behind the blue cart moving quickly on…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: A toy car is moving at 13 cm/s when it begins accelerating at 1.4 cm/s2. If the acceleration is…

A: Write the given values with the suitable variables. u=13 cm/sa=1.4 cm/s2s=27 m Here, u is the…

Q: An object moves along the ry-plane. At some instant, its velocity and acceleration are J = – (3 m/s)…

A: for straight line motion, the velocity and acceleration are in same (or opposite) direction.

Q: 3. A car traveling along the straight portions of the road has the velocities indicated in the…

Q: 1. An object is dropped from the top of a 100-m-high tower. Its height above ground after t sec is…

A: Given Data:Height Of Tower from which object is Dropped = 100 mThe height of the object above ground…

Q: It's a lazy day. You and your dog, Shamus, are both resting. Shamus is right next to you (you can…

A: Given Data: The acceleration is, a = 2.2 m/s2. The initial velocity is, u = 0 m/s. The first…

Q: A Porsche challenges a Honda to a 400 m race. Because the Porsche's acceleration of 3.5 m/s² is…

Concept explainers

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.

Topic Video

Question

W Mot X
DThe X G dece X
x C
G dece x S
S Stud X
E Grac X
Grac XE Grac X G mot X
G net X
G g to X
Revi X
a classroom.google.com/u/0/c/M]Y4MTUXMDQ3MZQZ/a/MzExODMzNzQwOTQw/details
c) What is the average velocity of each car for the first 10s?
4. A car is travelling at 10 m.s when the driver sees a police car. The driver brakes and decelerates at 4 m.s for 2
seconds. After 2 seconds of braking, the driver is confident that the police have not seen him so speeds up again to his
original speed in 4 seconds and then maintains his original speed.
10
6.
8.
7.
5.
41
2.
1.
0 1 2 3
4 5
Time (s)
a) What is the acceleration when the driver is speeding up again?
9.
7 8 9
10
b) What is lowest instantaneous velocity of the car and at what time does it occur?
c) What is the displacement of the car travel under braking?
Type here to search
6,
3.
Velocity (m/s)

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step by step

Solved in 4 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

1. A train leaves the station on a 50 km commute. The train must make a 60-second stopevery 1.0 km to pick up and drop off passengers. The train accelerates at 2.0 m/s2, then cruises at90 km/h, and then decelerates at 5.0 m/s2 between stops.(a.} How many stops does the train make?(b.} How long does it take for the train to get from one stop to the next?(c.} What is the total time for the entire commute?
10. A person is driving along a straight highway at a speed of 22.0 m/s when the traffic light which is 41.0 m ahead turns yellow. Because of his "reaction time", there is a delay of 0.11 s before the man steps on the brake. The car then slows with a deceleration of 4.40 m/s2. By how much distance does the driver miss the traffic light line? 50 ssi sf60 sf60 60 ssf60%
1. Rushin is waiting at a stoplight. When it finally turns green, Rushin accelerated from rest at a rate of a 2.00 m/s² for a time of 15 seconds. Determine the velocity of Rushin's car during this time period. -30 m/s? с. 7.5 m/s a. b. 30 m/s? d. 30 m/s 2. Ima is approaching a stoplight moving with a velocity of +30.0 m/s. The light turns yellow, and Ima applies the brakes and skids to a stop. If Ima has an acceleration rate of 8.00 m/s², determine the displacement of the car during the skidding process. 56.3 m cannot determine a. с. b. 240 m d. 4.3 m 3. A car slows down uniformly from a speed of 21.0 m/s to rest in 6.00 seconds. What was its average velocity? How far did it travel in that time? 10.5 m/s; 0.29 m 10.5 m/s; 63 m b. 21.0 m/s ;126 m a. с. d. cannot determine
1.A spacecraft starts from rest, and makes a journey to a destination 258000 km from its starting point. It does so by accelerating at a constant rate of 11.65 m/s^2 up to the midpoint of the journey, and then decelerates at the same constant rate of 11.65 m/s^2 for the second half of the journey, ending at rest. How long did the entire journey take? 2 hr 37 min 1 hr 51 min 6 hr 9 min 3 hr 5 min 2. An unidentified flying object (UFO) is observed to travel a total distance of 47000 m, starting and ending at rest, over a duration of 1.18 s. Assuming the UFO accelerated at a constant rate to the midpoint of its journey and then decelerated at a constant rate the rest of the way, what was the magnitude of its acceleration? Express your answer in g s , where 1 g = 9.81 m/s^2. 6,882 g s 135,019 g s 67,509 g s 13,763 g s 3. A Ford passes a Toyota on the road (both vehicles are traveling in the same direction). The…
1. Consider a car that initially travels in the positive direction at a speed of 30 m/s. The car uniformly speeds up to 40 m/s in a time of 5 s. Find the following: a. The acceleration of the car. b. The distance traveled over the entire 5.0 seconds. C. The distance traveled during the 2 s interval where the clock goes from t = 2 s, to t= 4 s. (Assume the 5 s time interval begins with the time = 0s.)
1. The acceleration of a car is given by a(t) = A – Bt + Ct² , where A = 1.0 m/s², B = 0.5 m/s³, C = 2.0 m/s“. The car is at rest at the origin at time t= 0. Find its position and velocity as a function of time. b. Sketch its position, velocity, and acceleration. a.
At 10:17 a.m., you pass a police car at 55 mph that is stopped on the freeway. You pass a second police car at 55 mph at 10:53 a.m., which is located 39 mi from the first police car. If the speed limit is 60 mph, can the police cite you for speeding? а. a. The total time between your two police car sightings was P hours. b. Your average speed between the two police car sightings was 8, mph. c. Can the police cite you for speeding? No, your average speed was less than the speed limit. CYes, since your average speed was more than the speed limit, there must have been somewhere within the 39 mi where you were driving more than 60 mph.
1. a 100kg astronaut (including the space suit) becomes untethered during a space walk and drifts to a distance of 10m from the mother ship. To get back to the ship, he throws his 2.5kg tool kit away with an acceleration of 8.0ms-1 that acts over 0.50s. a) How does throwing the tool kit away help the astronaut in the situation? b) How large is the fact that acts on the tool kit and the astronaut? c) With that speed will the astronaut drift to the mother ship? d) How long will it take for the astronaut to reach the ship?
1. A car is travelling towards the start line and the timer starts timing when the car crosses the start line. When the car crosses the start line, it is travelling at 5 m.s1. The car maintains its speed for 3 seconds then speeds up to 8 m.s1 in 4 seconds. It maintains this speed for 1 second then brakes hard and comes to a rest in 3 seconds. 10 9. 8. 7 3 2 1 0. 0 1 2 3 4 7 8 9 10 11 Time (s) a) What is the instantaneous velocity of the car at t = 7 s? b) What is the displacement? c) What is the average velocity of the car for the journey? 5 4- Velocity (m/s)