Question

Solve the example. An object moves 18m in the first 3s 22m in the next 3s and 14m in the 3s . What is its average speed​

Answer 1

Average speed of object = 6 m/s

Solution

We have,

• Distance₁ = 18 m
• Distance₂ = 22 m
• Distance₃ = 14 m

And,

• Time₁ = 3 s
• Time₂ = 3s
• Time₃ = 3s

We will use formula : -

◕ Av. speed = Total distance/Total time

✒ Av. speed = (18 + 22 + 14)/(3 + 3 + 3)

✒ Av. speed = 54/9

✒ Av. speed = 6 m/s

∴ Average speed of object = 6 m/s

Some more formulas :

● Speed = Distance/Time

● Force = Mass × Acceleration

Answer 2

Answer:

Total distance covered = 18m+22m+14m=54m

total distance

Average speed = ---------------------

total time

54 6

Therefore, Average speed ------- = --------

9 1

Therefore, Average speed = 6m/s

Explanation:

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