Question

a) An object moves 18 m in the first
3 s, 22 m in the next 3 s and 14 m in
the last 3 s. What is its average
speed?
(Ans: 6 m/s)​

Answer 1

Answer:

The average speed of the object will be 6 m/s.

Explanation:

By definition, Average speed is the ratio of the "total distance travelled by an object", to the "total time taken by the object" to cover the distance, or,

According to the question,

Total distance travelled by an object

= 18m + 22m + 14m  = 54m

Total time taken by the object to cover 54m

= 3s + 3s + 3s = 9s

∴ Average Speed

= 6 m/s (Ans.)

Thus, the average speed of the object will be 6 m/s.

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Answer 2

Answer:

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