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In 2.10 h, a balloon drifts 18.8 km north, 8.37 km
east, and 2.59 km upward from its release point on
the ground. Find (a) the magnitude of its average
velocity and (b) the angle its average velocity
makes with the horizontal.
(a) Number
IN
(b) Number 7.17
Hint
eTextbook and Media
Units
Units
km/
O
° (degr

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