(1) Which of these statements best describes the difference between an inelastic
ID: 778089 • Letter: #
Question
(1) Which of these statements best describes the difference between an inelastic collision and an elastic collision? (a) If colliding objects stick to each other after the collision, the collision is inelastic; otherwise, it is elastic. (b) If there is external force acting on the system, the collision is inelastic; otherwise, it is elastic. (c) The potential energy of the system is not conserved in an inelastic collision, but it is conserved in an elastic collision. (d) The kinetic energy of the system is not conserved in an inelastic collision, but it is cons in an elastic collision. (e) The linear momentum of the system is not conserved in an inelastic collision, but it is conserved in an elastic collision. erved (2) Two carts with masses m and M sit on a frictionless air track. The cart with mass m is given an initial push towards cart M (which is at rest). If the collision of the carts is elastic and mass M is larger than mass m, then after the collision: (a) both carts will move in the same direction (b) the carts will move in opposite direction (c) the first cart will come to rest and the second cart will move with the same velocity as the first one. (d) both carts move with the same velocity which is half of the initial velocity of the cart with mass m. e) none of the aboveExplanation / Answer
1.
b)external force acting on the system,the collision is inelastic otherwise it is elastic.
d) kinetic energy of system is not conserved in an inelastic collision but it is conserved in an alastic collision.
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