Answer:
6m/s
Step-by-step explanation:
Given the information :
an object travels 16 metre in 4 seconds and then another 16 metre in 2second.
what is the average speed of the object?
First portion of travel:
Distance = 16 meters
Time = 4 seconds
Second portion:
Distance = 16 meters
Time = 2 seconds
Speed is calculated as the proportion of distance traveled to the time taken.
Speed = distance / time
First portion :
Speed attained
Distance / time = speed
16 meters / 4 seconds = 4m/s
Second portion:
Speed attained
Distance / time = speed
16 meters / 2 seconds = 8m/s
Average speed :
(first portion + second portion) / 2
(4m/s + 8m/s) / 2
12m/s รท 2
= 6m/s