Question

An object move 9m the first 10s, then 5m in the 4s, then 15 in the next 12s. Calculate the average speed.

Answer 1

Answer:

57/12=avg speed

Explanation:

9/4+5/4+15/12=

27/12+15/12++15/12=57/12

Answer 2

To Find:-

The average speed

Given:-

An object move 9 m in first 10 seconds

Then , 5 m in 4 seconds

Then, 15 m in 12 seconds

Solution:-

step-by-step explanation:

So, We know that ,

$AverageSpeed= \dfrac{total \: distance}{total \: seconds}$

By , The Problem,

$\implies\dfrac{9 + 5 + 15}{10 + 4 + 12}$

$\implies \dfrac{29}{26}$

$\implies1.1153846154$

Required Answer:-

Hence, The average speed of the object is 1.1153846154 m/secs

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Some Important Concepts

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• Speed = Distance ÷ Time
• Distance = Speed × Time
• Moment Of Force = Force × Distance

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