A balloon drifts 30 m toward the east in 10 s; then the wind suddenly changes and the balloon flies

A balloon drifts 30 m toward the east in 10 s; then the wind suddenly changes and the balloon flies 50 m toward the west in the next 5 s.

a. What distance did it travel during the first 10 s?
b. What distance did it travel during the next 5 s?
c. What total distance did it travel?
d. What was its average speed during the first 10 s?
e. What was its average speed during the next 5 s?
f. What was its average speed for the entire trip?
g. What was its displacement during the first 10 s?
h. What was its displacement during the next 5 s?
i. What was its total displacement?
j. What was its average velocity during the first 10 s?
k. What was its average velocity during the next 5 s?
l. What was its average velocity for the entire trip?

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