Question

An object covers 30 m in 2s. And60m in another 3 s what is its average speed ? 5m/s 18 m/s 20m/s 30m/s

Answer 1

An object covers 30 m in 2 s and then covers 60 m in 3 s. What is the average speed of the object ?

Solution :

Total Distance Traveled by the Object =

30 m + 60 m = 90 m

Total Time Taken = 2 s + 3 s = 5 s

Average Speed = Total Distance Traveled/Total Time Taken

= 90 m/5 s = 18 m/s

Therefore, the Average Speed of the Object is $18 m s^{-1}$.

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Answer 2

Answer:

18 m/s

Explanation:

Given:

• Distance covered by the object in first 2 seconds = 30 metres
• Distance covered by the object in the next 3 seconds = 60 metres

To find:

• Average speed of the object from the above details

Average speed = Total distance/Total time

Total distance = 30+60 = 90 metres

Total time = 2+3 = 5 seconds

Average speed = 90/5

Average speed = 18 m/s

Option b) is the right answer for the above question