When a raindrop falls, it increases in size, and so its mass at time t is a function of t, namely, m(t). The rate of growth of the mass is km(t) for some positive constant k. When we apply Newton's law of motion to the raindrop, w get (mv)' gm, where v is the velocity of the raindrop (directed downward) and t is the acceleration due to gravity. The terminal velocity of the raindrop is lim v(t). Find an expression for the terminal velocity in terms of g and k. t→ lim v(t)=

Calculus: Early Transcendentals
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Author:James Stewart
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Chapter1: Functions And Models
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Hello, I am stuck on this separable differential equation in my Calculus II class. I am not too sure on how to correctly setup the equation to find the limit as the problem states. Any help is appreciated.

When a raindrop falls, it increases in size, and so its mass at time t is a function of t, namely, m(t). The rate of growth of the mass is km(t) for some positive constant k. When we apply Newton's law of motion to the raindrop, we
get (mv)'=gm, where v is the velocity of the raindrop (directed downward) and t is the acceleration due to gravity. The terminal velocity of the raindrop is lim v(t).
Find an expression for the terminal velocity in terms of g and k.
t→ ∞
lim v(t) =
t→ ∞
Transcribed Image Text:When a raindrop falls, it increases in size, and so its mass at time t is a function of t, namely, m(t). The rate of growth of the mass is km(t) for some positive constant k. When we apply Newton's law of motion to the raindrop, we get (mv)'=gm, where v is the velocity of the raindrop (directed downward) and t is the acceleration due to gravity. The terminal velocity of the raindrop is lim v(t). Find an expression for the terminal velocity in terms of g and k. t→ ∞ lim v(t) = t→ ∞
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