Question

Rahul takes 20hrs to travel from Bombay to Kerala with his car. The speed of the car is 15km/hr Calculate the distance between Bombay and Kerala. Express it in m.

Answer 1

${\underline {\underline {\huge {\sf { Required \: Answer: } }}}}$

Procedure to solve this:

• Here, we are given that time taken to travel is 20hrs.
• Also, speed of the car is 15km/h.
• Now, by applying the formula of distance [ Distance = Speed × Time ], we can calculate the distance.
• But, we'll get our answer in km, so we'll convert km to m to get the correct answer.

${\underline {\underline {\huge {\sf { Solution:– } }}}}$

Given:

• Time taken (t) = 20 hrs

• Speed of the car (v) = 15km/h

To calculate:

• Distance between Bombay and Kerala. (in metres)

Calculation:

We know that,

• ${\underline {\boxed {\Large {\sf {\pink { d = vt } }}}}}$

Where,

• d = distance

• v = speed

• t = time

$\sf { ⇢ d = 20 \times 15 }$

⠀⠀⠀

$\boxed { \sf \pink { ⇢ d = 300km}}$

Therefore,distance between Bombay to Kerala is 300km.

Expressing it into m :–

We know that,

• 1 km = 1000 m

$\boxed { \sf \pink { \therefore ⇢ 300km = 3,00,000m}}$

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More!

Distance

• Distance is the total path covered by the body.
• It is denoted by letter 'd'.
• SI unit of distance is m.
• Distance is a scalar quantity.

Formula : $\boxed { \sf \pink { Distance = Speed \times time}}$ or $\boxed { \sf \pink { d =vt}}$

Speed

• Speed is a scalar quantity.
• SI unit of speed is m/s.

Formula : $\boxed { \sf \pink { Speed = \dfrac{Distance}{time}}}$ or $\boxed { \sf \pink { v = \dfrac{d}{t} }}$

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