Two separate experiments are performed on a frictionless track

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Linear Momentum · Linear Momentum

Problem

Two separate experiments are performed on a frictionless track. • Collision I: A 1.0 kg1.0\,\text{kg} cart moving at 2.0 m ⁣⋅ ⁣s−12.0\,\text{m}\!\cdot\!\text{s}^{-1} collides and sticks to an identical 1.0 kg1.0\,\text{kg} cart that is initially at rest. • Collision II: A 2.0 kg2.0\,\text{kg} cart moving at 1.0 m ⁣⋅ ⁣s−11.0\,\text{m}\!\cdot\!\text{s}^{-1} collides and sticks to a 1.0 kg1.0\,\text{kg} cart that is initially at rest. Which collision results in the larger fraction of the system’s initial kinetic energy being converted to other forms? (a) Collision II only (b) Collision I only (c) Both collisions convert the same fraction of energy (d) There is not enough information to decide

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