Velocity-time graph?

Question

Finish this statement/phrase:

"What does a constant slope mean in a velocity-time graph? Slope means acceleration. Therefore, if we have a constant slope, we have a constant ______."

 

(1) constant acceleration 

(2) constant velocity 

(3) changing acceleration 

Answer 1

A constant slope in a velocity vs. time graph means that the body is accelerating at a constant rate, since

 

Δv/Δt = a = constant = slope 

 

The correct answer is (1), constant acceleration.