physics work

1. The following graph depicts the velocity vs. time of an object moving along a straight line.

(i) At what time is the object not moving?

(ii) At t = 2.5 s, is the object increasing or decreasing its speed?

(iii) What is the velocity of the object at t = 6 s?

(iv) What is the acceleration of the object at t = 7 s?

(v) Calculate the distance traveled by the object from t = 0 s to t = 3 s.

2. The following table depicts the position of an object at different times.

Time [s]	0	1	2	3	4	5	6	7	8
Position [m]	0	2	4	8	6	2	4	4	4

(i) Calculate the average velocity between 1 s and 3 s.

(ii) Calculate the average velocity between 4 s and 6 s.

(ii) Calculate the average speed between 5 s and 6 s.

v[m/s]

t[s]

5

1

1

- 1