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Neglecting air resistance, a man on a high ladder releases a ball from rest which strikes the ground with 100 J of kinetic energy. If he were to throw it straight upward instead, it will eventually reach the ground with a kinetic energy of 10) ______ A) less than 100 J. B) 100 J. C) more than 100 J.

Respuesta :

Answer:

The correct option is (B) "100 J".

Explanation:

The formula of kinetic energy is given by :

[tex]E=\dfrac{1}{2}mv^2[/tex]

m is mass and v is velocity of object.

In this case, it is mentioned that a man on a high ladder releases a ball from rest which strikes the ground with 100 J of kinetic energy.

If he were to throw it straight upward instead, it will eventually reach the ground with a kinetic energy of 100 J. This is due to the conservation of energy.

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