Question

The speed-time graph of a car is shown in the figure. The distance travelled by the car in 10 seconds will be

• A. 150 m
• B. 125 m
• C. 75 m
• D. 1.5 m

Answer 1

The correct option is C 75 m

Area under a speed-time graph gives the corresponding distance.
Distance = Area of triangle AOB
$\Rightarrow \text{Distance}=\frac{1}{2}\times Base\times Height$
$\Rightarrow s=\frac{1}{2}(OA\times AB)$
$\Rightarrow s=\frac{1}{2}(10\times 15)$
$\Rightarrow s=75m$
Hence, the correct answer is option (c).