Question

7. Solve the following examples.
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?
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Answer 1

Answer:

6m/s

Explanation:

in first 3 sec

18m

in other 3 sec

22m

in last 3sec

14m

average speed=total distance / total time

18/3 + 22/3 + 14/3

= 54/9 m/s

=6m/s