Question

A bus takes 30 minutes to cover a distance of 18km.What is its speed?
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Answer 1

Answer:

□Given :-

• A bus takes 30 minutes to cover a distance of 18km.

□To find :-

• The speed.

□Solution :-

• Here we should find the speed of the bus .

• Therefore,

• We know that,

• $speed = \frac{distance}{time}$
• $s = \frac{d}{t}$
• Here,

• d- denotes distance travelled.
• t - denotes time taken.
• s -denotes speed.

♧Now applying the values we get that ,

• Here we should convert km into m ,
• Here, d=18×1000m=18000m.

Now, time t=30minutes

• t=30×60
• t=1800.

• Speed= distance/ time
• speed =18000/1800
• Speed =10m/s^2.

♤Used formula :-

• Here we used the formula of speed = distance/ time.
• SI unit of speed is m /s.
• Refer the answer for your question.

♧Hope it helps u mate .

♧Thank you .

Answer 2

$\pink{ \boxed{\boxed{\begin{array}{cc} \maltese  \bf \: given \\ \\ \to \rm \:distance \: \: s = 18 \: km \\ \rm = 18 \times 1000 \: m \\ \rm = 18000 \: m \\ \\ \\ \to \rm \:taken \: \: time \: \: \: t = 30 \: min \\ \rm = 30 \times 60 \: s \\ \rm = 1800 \: s \\ \\ \to \rm \: \: speed \: \: v = \: to \: find\end{array}}}}$

${ \boxed{\boxed{\begin{array}{cc} \maltese  \bf we \: know \: that \\ \\ \rm \: distance \: (s) = speed(v) \times time(t) \\ \\ = > \rm \: s = vt \\ \\ = > \rm \: v = \frac{s}{t} \\ \\ = \frac{18000}{1800} \\ \\ = 10 \: m {s}^{ - 1} \end{array}}}}$

$\pink{ \boxed{\boxed{\begin{array}{cc} \maltese  \bf \: speed \: \: v = 10 \: m {s}^{ - 1} \end{array}}}}$