Concept explainers
(a)
To find: The time to reach the ball
(a)
Answer to Problem 14PT
The ball reaches a height of
Explanation of Solution
Given information:
The given equation is
Parker throws the ball with an initial of velocity of
Calculation:
Calculate the equation for the height of the ball,
The values are
Thus,
Therefore, the ball reaches a height of
(b)
To find: When the ball will reach
(b)
Answer to Problem 14PT
The ball will never reach
Explanation of Solution
Given information:
The given equation is
Parker throws the ball with an initial of velocity of
Calculation:
Calculate the equation for the height of the ball,
Thus,
To solve using the discrimination method, it is found that there are no real roots.
Therefore, the ball will never reach
(c)
To find: The time to the ball hit the ground.
(c)
Answer to Problem 14PT
The ball hit the ground at
Explanation of Solution
Given information:
The given equation is
Parker throws the ball with an initial of velocity of
Calculation:
Calculate the equation for the height of the ball,
The values are
calculate the value of
Two equations are,
Time cannot be negative,
Thus,
Therefore, the ball hit the ground at
Chapter 4 Solutions
Glencoe Algebra 2 Student Edition C2014
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