A light-rail commuter train accelerates at a rate of 1.45 m/s“. How long (in s) does it take to reach its top speed of 80.0 km/h, starting from rest? The same train ordinarily decelerates at a rate of 1.75 m/s2. How long (in s) does it take to come to a stop from its top speed? In emergencies the train can decelerate more rapidly, coming to rest from 80.0 km/h in 8.30 s. What is its emergency deceleration in m/s?? m/s2

A light-rail commuter train accelerates at a rate of 1.45 m/s“. How long (in s) does it take to reach its top speed of 80.0 km/h, starting from rest? The same train ordinarily decelerates at a rate of 1.75 m/s2. How long (in s) does it take to come to a stop from its top speed? In emergencies the train can decelerate more rapidly, coming to rest from 80.0 km/h in 8.30 s. What is its emergency deceleration in m/s?? m/s2

Name: A light-rail commuter train accelerates at a rate of 1.45 m/s“. How l
Uploaded: 2024-03-05T11:56:34.000Z
Channel: Bartleby
Description: A light-rail commuter train accelerates at a rate of 1.45 m/s“. How long (in s) does it take to reach its top speed of 80.0 km/h, starting from rest?The same train ordinarily decelerates at a rate of 1.75 m/s2. How long (in s) does it take to come t

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: Two cars start from rest at a red stop light. When the light turns green, both cars accelerate…

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

Q: A motorist traveling with a constant velocity of 30 m/s passes a school-crossing comer, where the…

Q: You decide to travel by car for your holiday visits this year. You leave early in the morning to…

A: Step 1: Step 2: Step 3:

Q: A car is moving at 35.1 m/s. On wet concrete, a car can decelerate at a rate of 6.35 m/s2. Finding…

A: Solution:-Given thatInitial velocity of car (u)=35.1 m/sDecceleration of car (a)=6.35 m/s2Reaction…

Q: Starting from rest at home plate, a baseball player runs to first base (90 ft away). He uniformly…

Q: Upon graduation, a joyful physics student throws his cap upward with an initial speed of 17 m/s…

Q: A car starts from a state of rest and drives along a level, straight road. For the first 30 s, the…

Q: cheetah can accelerate from rest to 23.5 m/s in 2.00 s. Assume that the acceleration is constant…

A: Given: The initial speed of the cheetah is 0 m/s. The final speed of the cheetah is 23.5 m/s. The…

Q: A race car at constant speed of 150 m/s passes a racing motorcycle that is about to start. The race…

Q: Traumatic brain injury such as concussion results when the head undergoes a very large acceleration.…

A: Hence, Hardwood floor magnitude 1670.2m/s2 Hardwood floor duration 1.59 ms Carpeted…

Q: Speedy Sue, driving at 35.0 m/s, enters a one-lane tunnel. She then observes a slow-moving van 160 m…

Q: (a) A light-rail commuter train accelerates at a rate of 1.35 m/s². How long (in s) does it take to…

A: given a = 1.35 m/s2 u = 0 m/s (starting from rest so initial velocity is zero) v = 80 km/h or…

Q: A rocket-powered sled moves along a track, eventually reaching a top speed of 212 m/s to the west.…

Q: 8. A particle is moving in a straight line such that the relation below gives its position.…

A: position as a function of time is given as x(t)=7.2 m/s2×t2 + 0.3 m/s×t+2.1 mvelocity is defined as…

Q: A shuffleboard disk is accelerated at a constant rate from rest to a speed of 4.4 m/s over a 1.9 m…

A: Total time taken? Total distance travelled?

Q: Driving down the road at a speed of 30.1 m/s, you suddenly notice a fallen tree blocking the road a…

A: Given in question - Speed(v) = 30.1 m/s Distance(D) = 78.5m Distance before tree(d) = 7.1 m To find…

Q: Traumatic brain injury such as concussion results when the head undergoes a very large acceleration.…

Q: than 800 m/s2 lasting for any length of time will not cause injury, whereas an acceleration greater…

Q: An express train passes through a station that is 212 m long. It enters with an initial speed of…

A: length of station (L) = 212 m Initial speed of train (u) = 22.5 msacceleration (a) = -0.13 ms2

Q: a) acceleration of the particle at t = 20s c) position of the particle at t = 5s, 10s and 20s d)…

A: Given, The velocity of the particle as a function of time is given by…

Q: Wags decides to go on another adventure. He begins by traveling east for 100m. He then moves 75 m in…

A: Given data, Distance travelled towards East = 100m Distance travelled towards west =75 m With…

Q: 10. A person is driving along a straight highway at a speed of 22.0 m/s when the traffic light which…

Q: A model rocket is launched straight upward with an initial speed of 45.0 m/s. It accelerates with a…

A: As per guidelines only 3 subparts are solved here. Given, A model rocket is launched straight upward…

Q: Traumatic brain injury such as concussion results when the head undergoes a very large acceleration.…

Q: A car is traveling at a speed of 30 m/s, a typical highway speed, on wet pavement. The driver sees…

A: Initially, speed of the car was, u = 30 m/s. The driver took t1 = 0.75 s to apply the brake Distance…

Q: Two vehicles are initially at rest. Car A starts a distance behind Car B. Both vehicles start…

Q: 10. A person is driving along a straight highway at a speed of 22.0 m/s when the traffic light which…

Q: A Honda Civic travels in a straight line along a road. Its distance x from a stop sign is given as a…

Q: To take off from the ground, an airplane must reach a sufficiently high speed. The velocity required…

Q: In a 25 storey building, the elevator starting from rest at first floor is accelerated at 0.8m/sec2…

A: The acceleration(a) is 0.8 m/sec2.The time (t1) is 5 sec.The time t2 is 10 sec.The time t3 is 3…

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

A light-rail commuter train accelerates at a rate of 1.45 m/s“. How long (in s) does it take to reach its top speed of 80.0 km/h, starting from rest?
The same train ordinarily decelerates at a rate of 1.75 m/s2. How long (in s) does it take to come to a stop from its top speed?
In emergencies the train can decelerate more rapidly, coming to rest from 80.0 km/h in 8.30 s. What is its emergency deceleration in m/s??
m/s2

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 3 images

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

A car starts from rest with an acceleration of 5.3 m/s² which decreases linearly with time to zero in 10.3 seconds, after which the car continues at a constant speed. Determine the time t required for the car to travel 330 m from the start. Answer: t = i ! S
A rocket-powered sled moves along a track, eventually reaching a top speed of 219 m/s to the east. It then begins to slow down, reaching a complete stop after slowing down for 4.98 s. What was the sled s average acceleration and velocity during the slowdown phase? 44.0 m/s^2 east, not enough information 109.5 m/s^2 west, 109.5 m/s west 44.0 m/s^2 west, not enough information 0 m/s^2 0, 109.5 m/s east
A rocket-powered sled moves along a track, eventually reaching a top speed of 150 m/s to the west. It then begins to slow down, reaching a complete stop after slowing down for 4.21 s. What was the sled s average acceleration and velocity during the slowdown phase? 35.6 m/s^2 east, not enough information 0 m/s^2 0, 75 m/s west 35.6 m/s^2 west, not enough information
Traumatic brain injury such as concussion results when the head undergoes a very large acceleration. Generally, an acceleration less than 800 m/s2 lasting for any length of time will not cause injury, whereas an acceleration greater than 1000 m/s2 lasting for at least 1 ms will cause injury. Suppose a small child rolls off a bed that is 0.36 m above the floor. If the floor is hardwood, the child's head is brought to rest in approximately 2.2 mm. If the floor is carpeted, this stopping distance is increased to about 1.2 cm. Calculate the magnitude and duration of the deceleration in both cases, to determine the risk of injury. Assume that the child remains horizontal during the fall to the floor. Note that a more complicated fall could result in a head velocity greater or less than the speed you calculate. Hardwood floor magnitude m/s2 duration ms Carpeted floor magnitude m/s2 duration ms
A teenager has a car that speeds up at 3.00 m/s² and slows down at - 4.50 m/s². On a trip to the store, he ac- celerates from rest to 12.0 m/s, drives at a constant speed for 5.00 s, and then comes to a momentary stop at an intersection. He then accelerates to 18.0 m/s, drives at a constant speed for 20.0 s, slows down for 2.67 s, continues for 4.00 s at this speed, and then comes to a stop. (a) How long does the trip take? (b) How far has he traveled? (c) What is his average speed for the trip? (d) How long would it take to walk to the store and back if he walks at 1.50 m/s?
Driving down the road at a speed of 29.4 m/s, you suddenly notice a fallen tree blocking the road a distance of 65.7 m ahead of you. You step on the brake pedal and decelerate at a constant rate. What must the magnitude of your acceleration be so that you will come to a stop 7.1 m in front of the tree? A 7.38 m/s^2 B 6.58 m/s^2 C 5.94 m/s^2 D 14.75 m/s^2
Consider a runner traveling with an initial velocity of 3.1 m/s in the positive direction accelerates at a constant rate of 1.8 m/s2 for a time of 3 seconds. What distance does the runner cover during this process? The distance traveled by the runner is ? m.
A blue car travels down a straight road at a constant speed of 19.1 m/s. As they pass a red car, initially stopped on the side of the road, the red car speeds up at a rate of 2.02 m/s2. How much distance (in m) does the red car travel before it overtakes the blue car?