A train is traveling south at constant speed 12.0 m/s. Then the brakes are applied & it slows down with a constant acceleration to a speed of 3.00 m/s in a time of 9.00 s. Draw a graph of speed versus time for a 12-s interval (starting 2 s before the brakes are applied and ending 1 s after the brakes are released). What is the acceleration of the train during the 9.00-s interval? How far does the train travel during the 9.00 s?

A train is traveling south at constant speed 12.0 m/s. Then the brakes are applied & it slows down with a constant acceleration to a speed of 3.00 m/s in a time of 9.00 s. Draw a graph of speed versus time for a 12-s interval (starting 2 s before the brakes are applied and ending 1 s after the brakes are released). What is the acceleration of the train during the 9.00-s interval? How far does the train travel during the 9.00 s?

Name: A train is traveling south at constant speed 12.0 m/s. Then the brakes
Uploaded: 2024-03-05T11:56:34.000Z
Channel: Bartleby
Description: A train is traveling south at constant speed 12.0 m/s. Then the brakes are applied & it slows down with a constant acceleration to a speed of 3.00 m/s in a time of 9.00 s.Draw a graph of speed versus time for a 12-s interval (starting 2 s before the

An Introduction to Physical Science

14th Edition

ISBN:9781305079137

Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Publisher:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Chapter2: Motion

Section: Chapter Questions

Problem 14E: A car travels on a straight, level road. (a) Starting from rest, the car is going 44 ft/s (30 mi/h)...

See similar textbooks

Similar questions

Colonel John P. Stapp, USAF, participated in studying whether a jet pilot could survive emergency ejection. On March 19, 1954, he rode a rocket-propelled sled that moved down a track at a speed of 632 mi/h. He and the sled were safely brought to rest in 1.40 s (Fig. P2.41). Determine (a) the negative acceleration he experienced and (b) the distance he traveled during this negative acceleration.
A car's manual states that the vehicle can brake at an initial speed of 100 km/hr with a maximum acceleration of -9 m/s^2, how far will the car travel before it comes to a stop?
The brakes are applied to a moving car, causing it to uniformly slow down. While slowing, it moves a distance of 40.0 m in 7.00 s to a final velocity of 2.05 m/s, at which point the brakes are released. (a) What was its initial speed (in m/s), just before the brakes were applied? i have tried so many ways to solve this and i cant please explain
A train of the Jay Yamon Line has a maximum speed of 50km/hr and its acceleration and deceleration are limited to a maximum rate of 2.222 m/s^2. How much time does it take for the train to accelerate and achieve its maximum speed and then he decelerate to a halt. Include solution, fbd and given
During a race, you are running at a speed of 4.50 m/s. You want to pass a slowerrunner, so you increase your speed steadily (that is, with constant acceleration) to5.75 m/s over a time period of 3.00 s. What was your acceleration over this timeperiod, and what distance did you travel between when you started and ended theacceleration? When taking off, a commercial airliner starts from rest and attains a velocity of81.0 m/s over a distance of 1.50 km. Assuming that it accelerates at a constantrate, what is this rate of acceleration?
A skier starts from rest and slides 9.0m down a slope in 3.0s. In what time after starting will the skier acquire a speed of 24m/s ? Assume that the acceleration is constant.
A rocket-powered sled moves along a track, eventually reaching a top speed of 247 m/s to the west. It then begins to slow down, reaching a complete stop after slowing down for 2.77 s. What was the sled s average acceleration and velocity during the slowdown phase?
A train of has a maximum speed of 50 km/hr and its acceleration and deceleration are limited to a maximum rate of 2.222 m/s^2. How much time does it take for the train to accelerate and achieve its maximum speed and then decelerate to a halt?
The car then slows to 63 ft/s (43 mi/h) in 3.5 s. What is the average acceleration for this time period?
The engineer of an intercity train observes a rock slide blocking the train's path 550 m ahead and activates the train's emergency brakes. The train decelerates uniformly (Hint: negative acceleration) at 1.7 m/s and completely stopes just before hitting the rock. What is the initial speed of the train measured in m/s?
If it takes a bicyclist 20 seconds to reach a speed of10 mph from rest, what is her acceleration? For thenext 10 minutes, she moves at the constant speed of10 mph, and at this time, she applies her brakes, andthe bicycle decelerates to a full stop in 4 seconds. Whatis the total distance traveled by the bicyclist? Determine the average speed of the cyclist during the first20 seconds, 620 seconds, and 624 seconds.
A UCI student is running at her top speed of 5.1 m/s to catch a Shuttle bus, which is stopped at the bus stop. When the student is still a distance 42.0 m from the Shuttle bus, it starts to pull away, moving with a constant acceleration of 0.163 m/s2 .For how much time does the student have to run at 5.1 m/s before she overtakes the bus?