Question

13. The distance-time graph of motion of a cycle is shown
here. What is the average speed of cycle over a time
period of 12 s? Distance (m)
A. 0.48 ms
B. 0.58 mst
C. 2.17 ms
d.3.17 ms​

Answer 1

Answer:

Firstly upload the graph

Answer 2

The average speed of cycle over a time  period of 12 s is (A) "0.48"  $\frac{m}{s}$.

Explanation:

The missing graph is:

Speed = $\dfrac{Distance}{Time}$

∴ Speed(1) $=\dfrac{2}{5}=0.4$

Speed(2) $= \dfrac{3}{9}=0.333$ and

Speed(3) $= \dfrac{9}{12}=0.75$

∴ The average speed of cycle over a time  period of 12 s

$=\frac{0.4+0.33+0.75}{3}$

$=\frac{1.48}{3}=0.4933$

Hence, the average speed of cycle over a time  period of 12 s is (A) 0.48  $\frac{m}{s}$.