Question

A cyclist travelling at a uniform speed covers at a distance of 9 km in 30 minute. Find the speed of the cyclist in m S -2

Answer 1

Answer:

The speed of the cyclists is 5m/s

• (HINT first convert 9km to 9000m and then convert 30min to 1800 seconds)
• later use the formula distance by time
• you will get 9000/1800
• the answer will be 5m/s

Answer 2

Appropriate Question :

A cyclist travelling at a uniform speed covers at a distance of 9 km in 30 minutes. Find the speed of the cyclist in m/s.

Answer:

5 m/s

Explanation:

As per the provided information in the given question, we have :

• Distance travelled (s) = 9 km
• Time taken (t) = 30 minutes

We've been asked to calculate the speed of the cyclist in m/s. In order to find that so, we need distance in metre and time taken in seconds. So,

Converting distance travelled in m :

⇒ Distance travelled = 9 km

As we know that 1 km consists of 1000 m. Thus,

⇒ Distance travelled = (9 × 1000) m

⇒ s = 9000 m ⠀⠀… ( 1 )

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Converting time taken in sec :

⇒ Time taken = 30 minutes

We know that 1 minutes consists of 60 seconds. So,

⇒ Time taken = (30 × 60) seconds

⇒ t = 1800 seconds⠀⠀⠀⠀… ( 2 )

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Calculation of speed in m/s :

Speed = Distance ÷ Time

Substitute the values of distance and time from ( 1 ) and ( 2 ).

⇒ Speed = 9000 m ÷ 1800 s

⇒ Speed = 90 m ÷ 18 s

⇒ Speed = 5 m/s

∴ The speed of the car in m/s is 5 m/s.