a uniform sphere of mass m & radius r rolls without slipping down an inclined plane set at an angle
to the horizontal. find
a) magnitude of friction coeff at which slipping is absent.
b) the kinetic energy of the sphere t seconds after the beginnning of motion.
ANS: a)
2/7* tan
b) 5/14* mg2t2 sin2
got the a) part....... plz explain the other part...
RATES ASSURED