Question

suppose a car travels first 10 m in 2 sec and next 50m in 5 sec. what is its average speed?​

Answer 1

Answer:

the answer is (50m)

Explanation:

10×5

Answer 2

Given :

• A car travels first 10 m in 2 seconds and next 50 m in 5 seconds.

To find :

• Average speed of the car

Solution :

Formula to calculate Average speed :-

• Average speed = Total distance travelled ÷ Total time taken

we have,

• Distance₁ = 10 m
• Time₁ = 2 seconds
• Distance₂ = 50 m
• Time₂ = 5 seconds

Total distance travelled = Distance₁ + Distance₂

→ Total distance travelled = 10 + 50

→ Total distance travelled = 60

Therefore, the total distance travelled by the car = 60 m

Total time taken = Time₁ + Time₂

→ Total time taken = 2 + 5

→ Total time taken = 7

Therefore, total time taken = 7 seconds

Substituting the values in the formula of average speed :-

→ Average speed = 60 ÷ 7

→ Average speed = 8.57

Therefore, the average speed of the car = 8.57 km/h