The solid homogeneous sphere is released from rest on the ramp.If $0=30\backslash$deg $,$ u$,=0\mathrm{.}35$ and $4,=0\mathrm{.}25,$ determine:$($a$)$ The acceleration of the mass center G and the friction force exerted by the ramp on the cylinder.$($b$)$ Will the cylinder roll without slipping or sliding?$($c$)$ What is the minimum frictional coefficient i needed to ensure rolling without slipping?$($d$)$ Comment on the scenario if the minimum u$,$ is below the value determined in $($c$)$ above