Question

Find the velocity from 0 to 5 s, for a moving particle whose displacement-time graph is shown below.

• A. 0 ${\text{ms}}^{-1}$
• B. 5 ${\text{ms}}^{-1}$
• C. 4 ${\text{ms}}^{-1}$
• D. 2.5 ${\text{ms}}^{-1}$

Answer 1

The correct option is C 4 ${\text{ms}}^{-1}$

Since the slope of D-T Graph gives the velocity

Slope : $\frac{changeindisplacement}{changeintime}$

Velocity = $\frac{20–0}{5–0}$
= $\frac{20}{5}$ = 4 ${\text{ms}}^{-1}$