15. A balloon is rising vertically above a level, straight road at a constant rate of 4 ft/sec. Just when the balloon is 32 ft above the ground, a bicycle moving at a constant rate of 11 ft/sec passes under it. How fast is the distance s(t) between the bicycle and balloon increasing 3 seconds later? ft/sec s(t) is increasing by (Simplify your answer.) yt) s(t) X xt)

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
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Chapter6: Vector Spaces
Section6.7: Applications
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15. A balloon is rising vertically above a level, straight road at a constant rate of 4 ft/sec. Just when the balloon is 32 ft
above the ground, a bicycle moving at a constant rate of 11 ft/sec passes under it. How fast is the distance s(t)
between the bicycle and balloon increasing 3 seconds later?
ft/sec
s(t) is increasing by
(Simplify your answer.)
yt)
s(t)
X
xt)
Transcribed Image Text:15. A balloon is rising vertically above a level, straight road at a constant rate of 4 ft/sec. Just when the balloon is 32 ft above the ground, a bicycle moving at a constant rate of 11 ft/sec passes under it. How fast is the distance s(t) between the bicycle and balloon increasing 3 seconds later? ft/sec s(t) is increasing by (Simplify your answer.) yt) s(t) X xt)
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