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Welcome to Physics Homework and Study Help, where you can ask questions and receive help on learning physics. We currently focus on helping questions in introductory level college physics and high school AP Physics courses.
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energy required

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When a piece of stone of mass 2 kg fall from a height of 10 m, breaks an object into two parts at the time of touching the ground. Q1-if the total kinetic energy of the stone is used to break it , then how much energy was expenced to break it? Q2-if one-fourth energy is required to break another object, then at what height the piece of stone will break the object during falling to the ground?to break an object which one is used stone's kinetic or potential energy??

asked Oct 23, 2015 in General by horeg (260 points)

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