Question

The diagram shows the displacement-time graph for a particle moving in a straight line. Find the average velocity for the interval from $t = 0$ to $t = 5\, s$.

• A. $-2\,ms^{-1}$
• B. $2\,ms^{-1}$
• C. $-4\,ms^{-1}$
• D. $4\,ms^{-1}$

Answer 1

Answer: (A)

Displacement $ = -10 - 0 = -10$
Average velocity $ = \frac{-10}{5}= - 2\,m/s$