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 velocity direction

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

Step2: Analyze acceleration from oil - drop diagram

The spacing between the oil - drop dots is decreasing. This means the object is slowing down. When an object is moving rightward and slowing down, the acceleration is in the opposite direction of the velocity, which is leftward.

Answer:

a. rightward, leftward