Question

Which equation describes average speed?

Answer 1

The correct equation would be C

Answer 2

Answer:The correct answer is option (C).

Explanation:

Average speed is defined as total distance covered by the body divide by the time elapsed( passed).

$\text{Average speed}=\frac{\text{Total distance}}{\text{Time Elapsed}}$

Suppose body has covered $D_1$ distance in $T_1$ first interval and after it covered $D_2$ distance in $T_2$  in second interval. So, the Average speed will be ;

$\text{Average speed}=\frac{D_1+D_2}{T_1+T_2}$

Hence ,the correct answer is option (C.).