Question

mission kc5: oil drop representations
an object is moving from left to right. it’s motion is represented by the oil drop diagram at the right. this object has a ________ velocity and a ________ acceleration.
a. rightward, leftward
b. leftward, rightward
c. rightward, zero
d. leftward, zero
e. rightward, rightward
f. leftward, leftward
g. none of these

Explanation:

Step1: Determine the direction of velocity

The object is moving from left - to right as stated, so the direction of velocity is rightward.

Step2: Analyze the acceleration from the oil - drop diagram

The spacing between the oil - drop dots is decreasing as we move from left to right. This indicates that the object is slowing down. When an object is slowing down while moving rightward, the acceleration is in the opposite direction of the velocity, which is leftward.

Answer:

a. rightward, leftward