A coin and a ring have the same mass and radius. Starting fromrest and the same height, they roll down the same incline. In otherwords, they both start with the same gravitational potentialenergy. Which one of the following statements is true about thecoin and ring when they reach the bottom of the incline?
| A. The increase in the coin's total kinetic energy is less thanthe increase in the ring's total kinetic energy. | |
| B. The increase in the coin's total kinetic energy is equal tothe increase in the ring's total kinetic energy. | |
C. The increase in the coin's total kinetic energy is greaterthan the increase in the ring's total kinetic energy. | A. Coin’s Krotational = ring'sKrotational,and coin's KCM = ring'sKCM | | | B. Coin’s Krotational = ring'sKrotational,and coin's KCM < ring'sKCM | | | C. Coin’s Krotational = ring'sKrotational,and coin's KCM > ring'sKCM | | | D. Coin’s Krotational < ring'sKrotational,and coin's KCM < ring'sKCM | | | E. Coin’s Krotational < ring'sKrotational,and coin's KCM = ring'sKCM | | | F. Coin’s Krotational < ring'sKrotational,and coin's KCM > ring'sKCM | | | G. Coin’s Krotational > ring'sKrotational,and coin's KCM > ring'sKCM | | | H. Coin’s Krotational > ring'sKrotational,and coin's KCM = ring'sKCM | | | I. Coin’s Krotational > ring'sKrotational,and coin's KCM < ring'sKCM |
| A. The speed of the coin's center of mass is less than thespeed of the ring's center of mass. | | | B. The speed of the coin's center of mass is equal to the speedof the ring's center of mass. | | C. The speed of the coin's center of mass is greater than thespeed of the ring's center of mass. |
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