Susan walked 273 m due east and then turned around and walked 581 m due west. the entire trip took her exactly 55 minutes. what was her average velocity due west for the trip in m/s?

Answer : 0.093 m/s

Explanation :

Average velocity is calculated using displacement of the object.

Hence average velocity = displacement/time

Since displacement is a vector, direction is necessary.

Distance walked towards east = 273 m

Distance walked towards west = 581 m

Since the direction is opposite, displacement = 273 + (-581) = -308 towards east = 308 towards west

Average velocity = displacement/time = 308 m/ (55*60) sec = 308/3300 = 0.093 m/s due west

1.

total distance travelled = 60 miles

total time taken =1.5 hours

average speed = total distance / total time

60 / 1.5

= 40

therefore, average speed = 40 m/h

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