Physics

Physics

Problem

A solid cylinder of radius 0.25 m0.25\,\text{m} is moving to the right on a horizontal surface with translational speed 1.5 m/s1.5\,\text{m/s} and angular speed 5.0 rad/s5.0\,\text{rad/s} (clockwise when viewed from the right). Which statement correctly characterizes its motion at this instant? a) The cylinder rolls without slipping because v=rω (to two significant figures).\text{The cylinder rolls without slipping because }v=r\omega\text{ (to two significant figures).} b) The cylinder is slipping; the contact point slides backward on the surface because v>rω.\text{The cylinder is slipping; the contact point slides backward on the surface because }v>r\omega. c) The cylinder is slipping; the contact point slides forward on the surface because v>rω.\text{The cylinder is slipping; the contact point slides forward on the surface because }v>r\omega. d) The cylinder is slipping; the contact point slides backward on the surface because rω=2.5 m/s>v.\text{The cylinder is slipping; the contact point slides backward on the surface because }r\omega = 2.5\,\text{m/s} > v.

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