Question

A car travels a distance of 15km in 20mins find the spead in i) km h-¹ ii)m s -¹​

Answer 1

Answer:

Given : Distance (D) = 15km = 15000m

Time (t) = 20 mins = 0.33 Hour = 1200 sec

Speed  = Distance/Time

S = D/t

i) S = 15/0.33 = 45 Km/h

ii) S = 15000/1200 = 12.5 m/s

Hope it Helps :)

Answer 2

Answer :-

• Speed of car in km/h-¹ = 45.45km/h-¹
• Speed of car in m/s-¹ = 12.5m/s-¹

Step-by-step explanation:

To Find :-

• Speed of car in km/h-¹ and m/s-¹

★ Solution

Given that,

• Distance covered by car = 15km
• Time taken by the car = 20 mins.

Firstly, Converting the distance from "km" to "m" :-

⇒ 15km = 15000m

Converting the time from "mins" to "hours" and "seconds" :-

⇒ 20 mins = 0.33 hours

⇒ 20 mins = 1200 seconds.

Now, According the question,

We know,

Speed = Distance/Time,

Therefore,

Speed of car in km/h-¹ :-

⇒ Distance/Time

⇒ 15/0.33

⇒ 45.45 km/h-¹

Speed the car in m/s-¹ :-

⇒ Distance/Time

⇒ 15000/1200

⇒ 150/12

⇒ 12.5 m/s-¹