A thin metal ring of mass 0.5 kg and radius 0.1 m rolls down an inclined plane of height 1m. The rotational K.E. of the ring of foot of inclined plane is

1.5 J

1.5 J

0%

1.9 J

1.9 J

0%

2.5 J

2.5 J

0%

3.6 J

3.6 J

0%