SOLUTION: A quarterback throws a football with an initial velocity of 72 ft/sec at an angle of 25�. The height of the ball can be modeled by h(t) = -16t^2 + 30.4t + 5 where h(t) is the heigh

Question 1051362: A quarterback throws a football with an initial velocity of 72 ft/sec at an angle of 25�. The height of the ball can be modeled by h(t) = -16t^2 + 30.4t + 5 where h(t) is the height (in ft) and t is the time in seconds after release.
a. Determine the time at which the ball will be at its maximum height.
b. Determine the maximum height of the ball.
c. Determine the amount of time required for the ball to reach the receiver�s hands if the receiver catches the ball at a point 3 ft off the ground.
Found 2 solutions by Damsung, ikleyn:
Answer by Damsung(1)   (Show Source): You can put this solution on YOUR website!
The same number is added to both the number numerator and denominator of the fraction 7/17 then becomes 6/11.find the number added.
Answer by ikleyn(52795)   (Show Source): You can put this solution on YOUR website!
.
Similar problem were solved in the lessons
    - Problem on an arrow shot vertically upward
    - Problem on a ball thrown vertically up from the top of a tower
in this site with detailed explanations.

Consider them as a sample. Read the solutions attentively.
Then solve your problem by substituting your data.

Also, you have this free of charge online textbook in ALGEBRA-I in this site
    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.

The referred lessons are the part of this textbook under the topic "Projectiles launched/thrown and moving vertically up and dawn".

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