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Concept explainers
a.
To calculate the velocity of the roller coaster.
a.
![Check Mark](/static/check-mark.png)
Answer to Problem 33PPS
0 feet per second
Explanation of Solution
Given:
The velocity
Given that, the velocity
Also given that,
Substituting in the formula and simplifying,
Conclusion:
Therefore, the roller coaster has a velocity of 0 feet per second at the top of the hill.
b.
To explain the reason for the expression is not equivalent to the given formula.
b.
![Check Mark](/static/check-mark.png)
Explanation of Solution
Given:
The given formula is
Consider the given formula,
Taking square root for each term, the given expression is true.
But the given expression is false since the square root is taken for the difference of squares.
Conclusion:
Therefore, the given expression is equivalent to the given formula.
Chapter 10 Solutions
Algebra 1
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