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When an object is rolling, movement involves rotation and translation. Mark the true statement about this...

When an object is rolling, movement involves rotation and translation. Mark the true statement about this situation.

a)When an object is rolling, movement involves rotation and translation. Mark the true statement about this situation. The total mechanical energy is equal to the sum of the translational kinetic energy with the gravitational potential energy of the object.

b)The kinetic energy of translation may be zero.

c)The gravitational potential energy can not remain constant

d)The kinetic energy of rotation can not vary.

e)The mechanical energy is equal to the sum of the translational kinetic energy, the kinetic energy of rotation, and the gravitational potential energy of the object.

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