Question

6. Answer the following in detail -
a. Car 'A' travels a distance of 150 km in 3 hrs while Car 'B' covers a
distance of 180 km in 4 hrs. Which car is moving faster?
​

Answer 1

FORMULA THAT WE WILL USE IN THIS QUESTION

 SPEED=DISTANCE / TIME

Speed of first car= 150/3 = 50 km /hr

Speed of second car= 180/4=45 km/hr

Therefore,

Speed of first car is more than the speed of second car

Answer 2

Required Answer:

${\underline {\boxed {\huge {\sf \pink { Car \: A} }}}}$

→ In order to find which car is moving faster,we need to calculate their speed first.

For Car A :

As per the given question, we have:

• Distance covered (s) = 150km
• Time taken (t) = 3 hrs

Now, we know that,

• Speed = Distance/time or s = d/t

→ Speed of car A = 150/3

→ Speed of car A = 50 km/h

Therefore, speed of car A is 50 km/h.

For Car B :

As per the given question, we have:

• Distance covered (s) = 180 km
• Time taken (t) = 4hrs

Now, we know that,

• Speed = Distance/time or s = d/t

→ Speed of car B = 180/4

→ Speed of car B = 45 km/h

Therefore, speed of car B is 45 km/h.

Now, we can conclude that,

• Speed of car A is greater than car B.

Speed of car A > Speed of car B

Therefore, Car A is moving faster.

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More!

Distance:

• Distance is total path covered by a body.
• SI unit of distance is metre (m).
• Formula: d = s × t
• Denoted by 's'

Speed:

• Denoted by 'd'
• SI unit of speed is metre/second (m/s).
• Formula: s = d/t

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