Question

A solid cylinder is released from rest from the top of an inclined plane of inclination 30° and length 60 cm If the cylinder rolls without slipping, its speed upon reaching the bottom of the inclined plane is ________ $ms ^{-1}$(Given $g =10 \,ms ^{-2}$ )

Answer 1

v=1+R
2k2​2gh​​

Where h=60sin30∘=30cm

k2=2R2​

v=2ms−1
So, The correct answer is 2.