A soccer ball (which can be approximated as a thin hollow spherical shell) rolls without slipping down a ramp, after starting from rest. Neglect kinetic friction and drag. As the soccer ball rolls down the ramp, what fraction of the total kinetic energy is rotational?
A. 0.20.
B. 0.33.
C. 0.40.
D. 0.67.
Answer:C
A soccer ball (which can be approximated as a thin hollow spherical shell) rolls without slipping down a ramp, after starting from rest. Neglect kinetic friction and drag. As the soccer ball rolls down the ramp, what fraction of the total kinetic energy is rotational?
A. 0.20. B. 0.33. C. 0.40. D. 0.67.