Position and acceleration graphs

[dlee9]

Homework Statement

Find the position and acceleration graphs from the velocity graphs given.

Homework Equations

The Attempt at a Solution

I'm pretty sure I've gotten some of them correct but I don't know which one I've done wrong.

 

[dlee9]

here are the velocity graphs given

 

[CWatters]

I think you should check the first and last answers..

The graph for a_x cannot be F. Acceleration is the slope of the velocity curve. At no point does the slope of the velocity curve change abruptly.

The graph for the position x cannot be I. At t=7 the slope of the position graph I is negative so the velocity should be negative.