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CQ101027 - Two identical blocks are simultaneously released...

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Unformatted text preview: Two identical blocks are simultaneously released from the same height above a level floor. Block 1 reaches the floor by dropping straight down. Block 2 reaches the floor by sliding down a frictionless ramp. Which of the following correctly compares the two motions? 10/25/10 Physics 121 19 (i) (ii) Which one of the following statements is true just before the carts collide in the two cases? (1) the kinetic energy of the system is zero in case (ii). (2) the kinetic energy of the system is greater in case (i) than in case (ii). (3) the kinetic energy of the system is the same in both cases. (4) the momentum of the system is greater in case (ii) than in case (i). (5) the momentum of the system is the same in both cases. (6) more than one of these statements 10/27/10 Physics 121 22 (i) (ii) Which one of the following statements is true just after the carts collide in the two cases? (1) the kinetic energy of the system is greater in case (ii) than in case (i). (2) the kinetic energy of the system is the same in both cases. (3) the momentum of the system is greater in case (ii) than in case (i). (4) the momentum of the system is non-zero in case (i) while it is zero in case (ii). (5) the momentum of the system is the same in both cases. (6) more than one of these statements. 10/27/10 Physics 121 23 ...
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CQ101027 - Two identical blocks are simultaneously released...

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