An object travels 20 m in 2 s and then another 16 m in 2 s. What is the average speed of the object?
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Answer :
The average speed is 9 m/s.
Step-by-step explanation :
To Find,
- The average speed ...?
Solution,
Let us assume an object as 1st Object and another as 2nd Object.
Given that,
- 1st object travels 20m in 2 secs
- 2nd object travels 16m in 2 secs
As we know that,
Average speed = Total distance / Total time
Therefore,
Total distance = Distance travelled by 1st object + distance travelled by 2nd object
= ( 20 + 16 )m
= 26m
Total time taken = Time taken by 1st object + Time taken by 2nd object
= ( 2 + 2 ) secs
= 4 secs
Therefore, by putting the values,
Average speed = 36 / 4
= 9 m/s
∴ Hence, average speed is 9 m/s.
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