Question

In an experiment, an object is moved along a straight line with different types of motion. The graph above shows position versus time for the object during the first three seconds of its motion.
Which one of the following is closest to the average speed of the object during the entire three-second interval that is shown in the graph?

• A. $0.67m/s$
• B. $1m/s$
• C. $1.33m/s$
• D. $2m/s$

Answer 1

The correct option is C $1.33m/s$

Total distance covered by object in $3$ s $D=4$ m

Thus average speed $=\frac{D}{t}=\frac{4}{3}=1.33$ $m/s$