A car is traveling east at an unknown initial velocity. Without changing directions, it accelerates at 0.75 m/s² for a distance of 300 m, increasing its velocity to 30 m/s. What was the initial velocityof the car?A. 26.0 m/sB.21.2 m/sC.36.7 m/sD. 21.4 m/s

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Description: A car is traveling east at an unknown initial velocity. Without changing directions, it accelerates at 0.75 m/s² for a distance of 300 m, increasing its velocity to 30 m/s. What was the initial velocityof the car?A. 26.0 m/sB.21.2 m/sC.36.7 m/sD. 21

Final velocity, v = 30 m/sAcceleration, a = 0.75 m/s²Distance, s = 300 mInitial velocity, u = ?

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A car is traveling east at an unknown initial velocity. Without changing directions, it accelerates at 0.75 m/s2 for a distance of 300 m, increasing its velocity to 30 m/s. What was the initial velocit of the car? A. 26.0 m/s B. 21.2 m/s C. D. 36.7 m/s 21.4 m/s

A car is traveling east at an unknown initial velocity. Without changing directions, it accelerates at 0.75 m/s2 for a distance of 300 m, increasing its velocity to 30 m/s. What was the initial velocit of the car? A. 26.0 m/s B. 21.2 m/s C. D. 36.7 m/s 21.4 m/s

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Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

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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

A car is traveling east at an unknown initial velocity. Without changing directions, it accelerates at 0.75 m/s² for a distance of 300 m, increasing its velocity to 30 m/s. What was the initial velocity
of the car?
A. 26.0 m/s
B.
21.2 m/s
C.
36.7 m/s
D. 21.4 m/s

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