Question

The average speed of an object which moves 10 km in 30 minutes is

Answer 1

Step-by-step explanation:

An object which moves 10 km in 30 minutes .

we have to find the average speed of the object .

Changing unit of time into hour

Time = 30/60 hour

Time = 1/2 hour

Time = 0.5 hour

Now let's calculate the average speed

`\rm\bf \: Average \: speed \: = (Total \: distance)/(Total \: time \: )`

Put the value we get

`\dashrightarrow \sf \: Average \: speed \: = (10)/(0.5) \\ \\ \dashrightarrow \sf \: Average \: speed \: = (100)/(5) \\ \\ \dashrightarrow \sf \: Average \: speed \: = \cancel (100)/(5) \\ \\ \dashrightarrow \sf \: Average \: speed \: =20km {hr}^( - 1)`

So, the average speed is 20km/hr