Suppose that a car traveling to the West (-x direction) begins to slow down as it approaches a traffic light. Make a statement concerning its acceleration.
A)The car is decelerating, and its acceleration is positive.
B)The car is decelerating, and its acceleration is negative.
C)The acceleration is zero.
D)The car is accelerating, and its acceleration is positive.
E)The car is accelerating, and its acceleration is negative.

Question

Quizplus · Accepted Answer

When a car traveling in the negative x-direction (West) slows down, it is decelerating, meaning its acceleration is in the opposite direction of its velocity. Since the car is moving in the negative direction, a positive acceleration is needed to slow it down.

Suppose That a Car Traveling to the West (-X Direction)