Q3/A subway traveling at 40 km/hr decelerates as it reaches point A and slows down with a constant deceleration. Its reduced velocity is noted to be 30 km/hr as it passes point C. A vehicle which is moving at 25 km/hr passes point B at the same instant that the subway reaches point A. In an unwise effort to beat the subway to the crossing, the driver "steps on the gas." (a) Calculate the constant acceleration Car a that the car must have in order to beat subway to the crossing by 2 sec and (b) find the velocity v of the car as it reaches the crossing. E- ALSHIRQAT subway A 10.5 km 0.5 km B 1.3 km

Q3/A subway traveling at 40 km/hr decelerates as it reaches point A and slows down with a constant deceleration. Its reduced velocity is noted to be 30 km/hr as it passes point C. A vehicle which is moving at 25 km/hr passes point B at the same instant that the subway reaches point A. In an unwise effort to beat the subway to the crossing, the driver "steps on the gas." (a) Calculate the constant acceleration Car a that the car must have in order to beat subway to the crossing by 2 sec and (b) find the velocity v of the car as it reaches the crossing. E- ALSHIRQAT subway A 10.5 km 0.5 km B 1.3 km

Name: Q3/A subway traveling at 40 km/hrdecelerates as it reaches point A an
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Description: Q3/A subway traveling at 40 km/hrdecelerates as it reaches point A andslows down with a constantdeceleration. Its reduced velocity isnoted to be 30 km/hr as it passespoint C. A vehicle which is movingat 25 km/hr passes point B at thesame instant tha

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

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

Q3/A subway traveling at 40 km/hr
decelerates as it reaches point A and
slows down with a constant
deceleration. Its reduced velocity is
noted to be 30 km/hr as it passes
point C. A vehicle which is moving
at 25 km/hr passes point B at the
same instant that the subway
reaches point A. In an unwise effort
to beat the subway to the crossing,
the driver "steps on the gas." (a)
Calculate the constant acceleration
Car
mit
a that the car must have in order to beat subway to the crossing
the velocity v of the car as it reaches the crossing.E ALSHIRQAT
subway
A
10.5 km
C
0.5 km
B
1.3 km
2 sec and (b) find

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