A man walks 50 meters east and walks 25 meters to the west for 9 minutes. What is his average speed and average velocity in m/s?
Given:
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Formula/s:
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Formula/s:
Solution:
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Answer:
Given :
Distance 1 : 50 m east
Distance 2: 25 m west
time : 9 min
formula :
Average speed = total distance / total time
Average velocity = displacement / time
Solution :
Average speed = d/ t
= 50 m + 25 m / 9 min
= 75 m / 9 min ( convert minutes to seconds)
1min = 60 sec
9 × 60 = 540seconds
= 75m /540s
= 0.14m/s
Average velocity = d/ t
= 50 m east + 25 m west / 540 s
= 50m +( -25) m / 540 s
= 25 m east / 540s
= 0.05 m/s east