Question

a car travels first 10km in 20min and another 10km in 30 minutes what is the average speed of the car in m/s

Answer 1

Answer :-

The average speed of the car is 8.33m/s.

Step-by-step explanation:

To Find :-

• The average speed of car in m/s.

★ Solution

Given that,

• A car travels first 10km in 20mins and another 10km in 30mins.

Let us consider :-

The first 10km in 20mins as s₁ and t₁.

Another 10km in 30mins as s₂ and t₂.

Now,

Total distance covered by the car :-

⇒ (s₁ + s₂)

⇒ (10000 + 10000)m

⇒ 20000m

Total time taken by car :-

⇒ (t₁ + t₂)

⇒ (600 + 1800) seconds

⇒ 2400 seconds

According the question,

We know,

Average speed = Total distance/Total time.

Therefore,

⇒ Total distance/Total time

⇒ 20000/2400

⇒ 8.33m/s

Hence, The average speed of the car is 8.33m/s.