Given a position-time graph for an object moving along a straight line, which of the following statements correctly describes how to determine the object's positions $x_1$, $x_2$, $x_3$, and $x_4$ at times $t_1$ = $2.0s$, $t_2$ = $4.0s$, $t_3$ = $13s$, and $t_4$ = $17s$?

Which of the following best describes the shape of a position-versus-time graph for a drag racer starting from rest and accelerating uniformly down a straight track?

Given a position-time graph where the position increases linearly with time, which of the following best describes the motion of the object?

Which of the following best represents the graph of position $x$ versus time $t$ for an object moving with constant positive velocity?

The position-time graph for a moving box is shown below.

(a) What is the box's average velocity from 0 to 5s?
(b)What is the box's average velocity from 0 to 8s?
(c) What is the box's velocity in the interval where it's moving fastest?

The position-time graph for a ball on a track is shown below.

(a) What is the ball's velocity at 4s?

(b) At what time(s) is the ball approximately travelling at -10m/s?

(c) From t = 3 to 7s, what is the sign of the acceleration?