Question

Let's say that the total energy of the skater is 100 J. a. If Potential Energy at the top of the ramp is 100 J, how much Kinetic energy does the skater have?​

Answer 1

At a start, the potential energy = mgh and kinetic energy = zero because its velocity is zero. Total energy of the object = mgh. As it falls, its potential energy will change into kinetic energy. If v is the velocity of the object at a given instant, the kinetic energy = 1/2mv2.

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