Answered

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An object of mass m is moving down an inclined plane that makes an angle they a with the horizontal and has height h. Which of the following statements is correct regarding its energy? A.)It is kinetic only. B.)It is kinetic and potential. C.)It is potential only. D.)Nione of the other choices is correct.

Sagot :

The answer should be B. According to the conservation of energy, the energy cannot be created nor destroyed, but it can be transformed. Since the object is moving down, that means its height is decreasing, causing the potential energy decreasing and the kinetic energy  increasing to fulfill the conservation law. 
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