Question

at what point does the roller coaster have the most kinetic energy?
a
c
f
g
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Explanation:

Kinetic energy is related to the speed of an object. For a roller - coaster, at lower heights (assuming no energy loss due to friction etc., and using the conservation of mechanical energy \(E = mgh+\frac{1}{2}mv^{2}\), where \(E\) is the total mechanical energy, \(m\) is the mass, \(h\) is the height, and \(v\) is the speed), the potential energy \(mgh\) is lower and the kinetic energy \(\frac{1}{2}mv^{2}\) is higher. Among the given points, point \(C\) is at the lowest height. So it has the most kinetic energy.

Answer:

C