Question

The following graph shows the distance covered by runners in 3.8 seconds. Calculate Ahmed's speed in m/s.

• A. 2.8 m/s
• B. 2.9 m/s
• C. 3.8 m/s
• D. 3.9 m/s

Answer 1

The correct option is B 2.9 m/s

Distance covered by Ahmed = 11.02 m
Time taken = 3.8 s

We know,

Speed = $\frac{\text{Distance}}{\text{Time}}$

For Ahmed,

Speed = $\frac{11.02}{3.8}$ m/s

Calculating 11.02 $÷$ 3.8, we get:


∴ We can rearrange the equation as:
11.02 $÷$ 3.8 = 110.2 $÷$ 38

Calculating 110.2 $÷$ 38 by standard algorithm, we get:


Hence, Ahmed's speed is 2.9 m/s.