Question

Which parts of the graph represents the object moving at a constant, positive acceleration?

Answer 1

From the time 2 sec to 4 sec (Y) shows that object moving at constant acceleration

Answer 2

Answer:

W and X

Explanation:

They are both straight lines and face upwards on the graph, this means it is a positive acceleration because upwards on the graph is a higher velocity. And a constant acceleration because the line is straight.

Also it can't be Z because Z is negative acceleration because the line goes down. and it can't be Y because there is no acceleration at Y because in the graph it shows it stays at 20 m/s. That leaves W and X.