Question

2. A body covered 30 km in loh. the average speed
for
the whole journey would be​

Answer 1

Correct Question:

• A body covers a distance of 30 km in 10 hours. The average speed for the whole journey would be ___ ?

Given:

• Distance covered by the body = 30 km
• Time taken by the body to cover 30 km = 10 hours.

To Find:

• Average speed for the whole journey.

Calculation:

To calculate the average speed, we'll be using this formula,

Formula to be used :

• $\boxed{ \rm{ \orange{Speed = \dfrac{Distance}{Time} }}}$

$\dag$ Putting the values,

$\longrightarrow \sf \: Average \: speed = \dfrac{Distance}{Time} \\ \\ \\ \longrightarrow \sf \: Average \: speed = \dfrac{30}{10} \\ \\ \\ \longrightarrow \sf \: Average \: speed = \cancel \dfrac{30}{10} \\ \\ \\ \longrightarrow \boxed{\sf \: Average \: speed = 3 km/h } \: \green { \bigstar}$

Therefore, average speed for the whole journey is 3 km/h.

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Extra Information:

• The SI unit of time is second.

• The SI unit of speed is m/s.

$\star$ Formula for finding time :

• ${\underline {\boxed {\large {\bf \gray { Time = Distance \div Speed } }}}}$

$\star$ Formula for finding distance :

• ${\underline {\boxed {\large {\bf \gray { Distance = Speed \times Time }}}} }$

• Speed is the distance covered by the body in unit time. A body can move slow or fast.

• A speedometer & odometer indicates the speed of a vehicle.