Question

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

Explanation:

Step1: Determine the direction of velocity

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

Step2: Analyze the acceleration from the oil - drop diagram

The spacing between the oil - drops is decreasing. This means the object is slowing down. Since it is moving left - ward and slowing down, the acceleration is in the opposite direction of the velocity, which is right - ward.

Answer:

d. leftward, rightward