Multiple Choice
What is the difference between stored energy and usable energy in the context of and ?
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9. Work & Energy
Intro to Energy & Kinetic Energy
Multiple Choice
Given the equation mgh = (1/2)mv^2, what is the expression for height (h) in terms of velocity (v) and gravitational acceleration (g)?
A
h = v^2 / (2g)
B
h = g / (2v^2)
C
h = v^2 / g
D
h = 2v^2 / g
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Verified step by step guidance1
Start with the given equation for mechanical energy conservation: .
Notice that the mass appears on both sides of the equation. You can divide both sides by to simplify: .
To isolate , divide both sides of the equation by : .
Simplify the expression by rearranging the terms: .
The expression for height in terms of velocity and gravitational acceleration is .
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