A hollow steel ball weighing 4 pounds is suspended from a spring. This stretches the spring - feet. The ball is started in motion from the equilibrium position with a downward velocity of 8 feet per second. The air resistance (in pounds) of the moving ball numerically equals 4 times its velocity (in feet per second). Suppose that after t seconds the ball is y feet below its rest position. Find y in terms of t. (Note that the positive direction is down.) Take as the gravitational acceleration 32 feet per second per second. y =

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A hollow steel ball weighing 4 pounds is suspended from a spring. This stretches the spring
feet. The ball is started in motion from the equilibrium position with a downward velocity of 8 feet per
second. The air resistance (in pounds) of the moving ball numerically equals 4 times its velocity (in
feet per second) .
Suppose that after t seconds the ball is y feet below its rest position. Find y in terms of t. (Note that
the positive direction is down.)
Take as the gravitational acceleration 32 feet per second per second.
y =
Transcribed Image Text:A hollow steel ball weighing 4 pounds is suspended from a spring. This stretches the spring feet. The ball is started in motion from the equilibrium position with a downward velocity of 8 feet per second. The air resistance (in pounds) of the moving ball numerically equals 4 times its velocity (in feet per second) . Suppose that after t seconds the ball is y feet below its rest position. Find y in terms of t. (Note that the positive direction is down.) Take as the gravitational acceleration 32 feet per second per second. y =
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