2. An object has momentum must also have ___ A. Acceleration B. Mechanical energy C. Potential energy D. Impulse 3. A ball of mass m moves at a constant speed v in circular path with a radius R. Which of the following represents the net force applied on the ball? A. ??/? B. ??^2/R C. ?? D. ?/??

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A: An object at rest does not have speed or acceleration.

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A: Dear student, Since you have posted a question with multiple subparts, as per company guidelines we…

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Q: kinetic energy

A:

Q: What is Law of Conservation of Mechanical Energy?

A: According to conservation of energy Total energy of isolated system remains constant.

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