Suppose that a car traveling to the east (+x direction)begins to slow down as it approaches a traffic light.Which statement concerning its acceleration must be correct?
A)Its acceleration is in the +x direction.
B)Its acceleration is in the -x direction.
C)Its acceleration is zero.
D)Its acceleration is decreasing in magnitude as the car slows down.

Question

Quizplus · Accepted Answer

Because the car is slowing down in the +x direction, its velocity is decreasing. Therefore, the acceleration is in the opposite direction of its velocity. Therefore, the acceleration must be in the -x direction.

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