A rope is wound round a hollow cylinder of mass 3 kg and radius 40 cm. What is the angular acceleration of the cylinder if the rope is pulled with a force of 30 N.

A rope is wound round a hollow cylinder of mass 3 kg and radius 40 cm.

1.	A rope is wound round a hollow cylinder of mass 3 kg and radius 40 cm. What is the angular acceleration of the cylinder if the rope is pulled with a force of 30 N.
Answer» `0.25 "rad"s^(-2)` `25 "rad"s^(-2)` `5 MS^(-2)` `25 ms^(-2)` Solution :`pi=F xx r` `Ialpha=F xx r` `MR^(2) xx alpha = 30 xx (40)/(100)` , `(3 xx 40 xx 40 xx alpha)/(100 xx 100)=12` `(3 xx 16 xx alpha)/(100)=12` , `alpha=25 "rad" // s^(2)`