Starting from Rest,a Car Accelerates Down a Straight Road with Constant

question 29

Multiple Choice

Starting from rest,a car accelerates down a straight road with constant acceleration a for a time t,then the direction of the acceleration is reversed, (i.e. ,it is −a) ,and the car comes to a stop in an additional time t,the time for the whole trip being 2t.At what time,or times,is the average velocity of the car for the trip equal to its instantaneous velocity during the trip?

• A)There is no such time.
• B)It is at the halfway point at t.
• C)This occurs at 2 times,0.5t and 1.5t.
• D)This occurs at 2 times,0.707t and 1.293t.

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Definitions:

Competing

Engaging in a struggle or contest against others for resources, recognition, or victory in a specific area.

Compromising

The act of finding a middle ground through mutual concessions in a dispute or negotiation.

Personalities

Personalities encompass the unique combination of emotional, attitudinal, and behavioral response patterns of an individual, contributing to their consistent behaviors and actions in various situations.

Irreconcilable

Describing differences or disputes that are so great they cannot be resolved or reconciled.