Suppose that a car traveling to the East (+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) A statement cannot be made using the information given.

Question

Quizplus · Accepted Answer

Deceleration means a decrease in velocity, which corresponds to a negative acceleration. Since the car is slowing down as it approaches the traffic light, its acceleration is negative. Therefore, the correct option is B.

Suppose That a Car Traveling to the East (+X Direction)