The mass of a cylinder is 50 kg and its radius is 0.20 m. The moment of inertia of the cylinder about its axis is \( 1.0 \mathrm{kgm}^{2} \) . What is the total kinetic energy of the cylinder when it rolls at a horizontal velocity \( 2 \mathrm{~ms}^{-1} \) ?
A 150 J
B 160 J
C 170 J
D 180 J
Solution
Correct Answer: Option A