Question

Which equation describes average speed?

A-Average speed = Total distance x Total time

B-Average speed = Sum of instantaneous speeds

C-Average speed = Total distance ÷ Total time

D-Average speed = Total time ÷ Total distance

Answer 1

The correct equation would be C

Answer 2

Answer:The correct answer is option (C).

Step-by-step 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}=(D_1+D_2)/(T_1+T_2)`

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