Concept explainers
To find how much farther will it travel upward before starting to fall back to the ground ?
Answer to Problem 19P
3062.5m will it travel upward before starting to fall back to the ground.
Explanation of Solution
Given information: A rocket is moving vertically upward with speed 245m/s.
Calculation: The required solution is obtained as,
Use the projectile equation,
Velocity ,
Set the zero height at when the fuel runs out.
Since the rocket goes up, then back down, without any power, the maximum height is found at the time that is half the total trip.
Substitute the halfway time into the vertical motion equation to find the height.
Hence, 3062.5m will it travel upward before starting to fall back to the ground.
Chapter 4 Solutions
Algebra and Trigonometry: Structure and Method, Book 2
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