23. A ball is thrown vertically upwards from the ground with an initial velocity of 96 feet per second. Use the function s (t) = -16t +vt +s where v is the initial velocity and s is the initial height a) After how many seconds does the ball attains its maximum height? b) What is the maximum height the ball attains? c) After how many second does the ball return to the ground?
23. A ball is thrown vertically upwards from the ground with an initial velocity of 96 feet per second. Use the function s (t) = -16t +vt +s where v is the initial velocity and s is the initial height a) After how many seconds does the ball attains its maximum height? b) What is the maximum height the ball attains? c) After how many second does the ball return to the ground?
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter2: Motion In One Dimension
Section: Chapter Questions
Problem 49P
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Expert Solution
Given data:
The initial velocity,
The function for the position of the ball is,
Solution for (a):
The function for the position of the ball is,
The velocity of the ball at the maximum height is zero, therefore, differentiate the expression above with respect to time to determine the time required for the ball to reach maximum height,
Here, s is constant, therefore,
Substitute and solve for t
Therefore, the time required for the ball to reach the maximum height is 3 seconds.
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