The car directly ahead of him is also traveling at 70 mi/hr. Vladimir is keeping what he feels is a safe distance from the car directly ahead of him, 35.0 m (roughly 7 car lengths). Suddenly at t = 0, having noticed a posted speed limit of 40.0 mi/hr (due to road construction), the driver of the car ahead slams on his brakes and begins to slow down at a steady rate of 10.0 m/2 Once he has slowed down to 40.0 mi/hr (17.9 m/s), he plans to maintain this constant speed. Suppose that it takes Vladimir 1.00 second to notice that the car ahead has slowed down, and another 2.00 seconds to effectively apply his brakes. Also suppose that, once he has applied his brakes, Vladimir's car slows down at a steady rate of 10.0 m/2 . X=0 X-35.0 m 16. Assume, for the sake of argument, that no collision occurs. What distance will Vladimir's car travel while he is in the process of slowing down to 40.0 mi/hr? A. 35.0 m. B. 93.9 m. C. 165 m. D. 33.0 m. E. 65.9 m.

The car directly ahead of him is also traveling at 70 mi/hr. Vladimir is keeping what he feels is a safe distance from the car directly ahead of him, 35.0 m (roughly 7 car lengths). Suddenly at t = 0, having noticed a posted speed limit of 40.0 mi/hr (due to road construction), the driver of the car ahead slams on his brakes and begins to slow down at a steady rate of 10.0 m/2 Once he has slowed down to 40.0 mi/hr (17.9 m/s), he plans to maintain this constant speed. Suppose that it takes Vladimir 1.00 second to notice that the car ahead has slowed down, and another 2.00 seconds to effectively apply his brakes. Also suppose that, once he has applied his brakes, Vladimir's car slows down at a steady rate of 10.0 m/2 . X=0 X-35.0 m 16. Assume, for the sake of argument, that no collision occurs. What distance will Vladimir's car travel while he is in the process of slowing down to 40.0 mi/hr? A. 35.0 m. B. 93.9 m. C. 165 m. D. 33.0 m. E. 65.9 m.

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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Concept explainers

Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –

Question

Vladimir is traveling South at a steady 70.0 mi/hr (31.3 m/s) on a straight portion of Route 3.
The car directly ahead of him is also traveling at 70 mi/hr. Vladimir is keeping what he feels is a safe distance from the car directly ahead
of him, 35.0 m (roughly 7 car lengths).
Suddenly at t = 0, having noticed a posted speed limit of 40.0 mi/hr (due to road construction), the driver of the car ahead slams on his
brakes and begins to slow down at a steady rate of 10.0 "m/2 .
Once he has slowed down to 40.0 mi/hr (17.9 m/s), he plans to maintain this constant speed.
Suppose that it takes Vladimir 1.00 second to notice that the car ahead has slowed down, and another 2.00 seconds to effectively apply
his brakes. Also suppose that, once he has applied his brakes, Vladimir's car slows down at a steady rate of 10.0
X=0
X=35.0 m
16. Assume, for the sake of argument, that no collision occurs.
What distance will Vladimir's car travel while he is in the process of slowing down to 40.0 mi/hr?
A. 35.0 m.
B. 93.9 m.
C. 165 m.
D. 33.0 m.
E. 65.9 m.
17. Which of the following statements is true?
A. A collision occurs before the car ahead has slowed down to 40.0 mi/hr?
B. A collision occurs after the car ahead has slowed down to 40.0 mi/hr but before Vladimir has even applied his brakes?
C. A collision occurs after Vladimir has applied his brakes but before he can slow down to 40.0 mi/hr?
D. There is no collision, but at the instant Vladimir's car has slowed down to 40.0 mi/hr, his front bumper is
less than 3.00 meters from the rear bumper of the car ahead.
E. There is no collision, but at the instant Vladimir's car has slowed down to 40.0 mi/hr, his front bumper is
less than 1.00 meter from the rear bumper of the car ahead.

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