Which of the following conditions must hold for a rigid body of radius to roll…
PHYSICS · Single correct · AP · Physics 1: Algebra-based · Energy and Momentum of Rotating Systems · Energy and Momentum of Rotating Systems
Problem
Which of the following conditions must hold for a rigid body of radius R to roll without slipping on a horizontal surface?
(a) The translational speed of its center of mass equals R times its angular speed.
(b) The net torque on the body about its center of mass is zero at every instant.
(c) No frictional force acts at the point of contact between the body and the surface.
(d) The static friction force at the point of contact must equal μsN.