Question

Line D represents movement that starts out toward the south, slows down, and stops. Why is the slope of the line positive?1) The velocity is positive.2) The velocity is negative.3) The acceleration is negative.4) The acceleration is positive.

Answer 1

Given that line D represents the movement that start out towards the south, slow down, and stops. Let's determine why the slope of the line is positive.

The slope of a velocity-time graph is said to represent the acceleration of the moving object.

In this case, the slope starts out toward the south, slows down and stops, this means the acceleration of the object that moved is positive.

Since the acceleration is positive, the slope of the line is aslo positive.

Therefore, we can say the slope of the line is positive because the acceleration is positive.

ANSWER:

4) The acceleration is positive