A wheel of mass M and radius of gyration k (see Exercise 20) spins on a fixed horizontalaxle passing through its hub. Assume that the hub rubs the axle of radius a at only the top- most point, the coefficientof kinetic frictionbeingThe wheel is given an initial angular velocityAssume uniform decelerationand find (a) the elapsed time and (b) the number of revolutionsbefore the wheel comes to a stop

Simran Bhatia , 9 Years ago

Grade 11