A driver travelling at 7Okm/h tries to stop the car and finds that the brakes has failed. The emergency brake is then pulled and the car comes to a stop in 120m. 1. What was the final velocity of the car? a. 70km/h b. 120m/s c. Okm/h d. 1m/s 2. The velocity of the car was decreasing, so the acceleration was a. Zero b. negative c. positive d. increasing 3. To determine the acceleration of the car what would be the equation to be used?

A driver travelling at 7Okm/h tries to stop the car and finds that the brakes has failed. The emergency brake is then pulled and the car comes to a stop in 120m. 1. What was the final velocity of the car? a. 70km/h b. 120m/s c. Okm/h d. 1m/s 2. The velocity of the car was decreasing, so the acceleration was a. Zero b. negative c. positive d. increasing 3. To determine the acceleration of the car what would be the equation to be used?

Name: QIWK2C_final.pdf - Adobe Reader10/11 +A. A driver travelling at 70km/
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Description: QIWK2C_final.pdf - Adobe Reader10/11 +A. A driver travelling at 70km/h tries to stop the car and finds that the137%Toolsbrakes has failed. The emergency brake is then pulled and the car comesto a stop in 120m.1. What was the final velocity of the ca

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

QIWK2C_final.pdf - Adobe Reader
10/11 +
A. A driver travelling at 70km/h tries to stop the car and finds that the
137%
Tools
brakes has failed. The emergency brake is then pulled and the car comes
to a stop in 120m.
1. What was the final velocity of the car?
a. 70km/h b. 120m/s c. Okm/h
d. 1m/s
2. The velocity of the car was decreasing, so the acceleration was
b. negative c. positive d. increasing
3. To determine the acceleration of the car what would be the equation
a. Zero
to be used?
v7²-v;²
2.
2.
2.
2.
vf-Vi
a. a =
t
b. a =
С. а %3
d. a =
2t
d.
2d
4. What will be direction of the car's acceleration in your simple sketch?
a. Same with the direction of velocity
b. Opposite to the direction of velocity
c. Perpendicular to the direction of velocity
d. None of the above
5. What will be the acceleration of the car?
a. -1.57m/s2
d. +3.57m/s2
b. +1.57m/s2
c. -3.57m/s2

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