682PhysicsMedium
A hoop and disc have same mass and radius. Their rotational K.E are related by an equation______________?
AK.E hoop = 1/2K.E disc
BK.E hoop = 2K.E disc
CK.E hoop = 4K.E disc
DK.E hoop = K.E disc
Correct answer
B. K.E hoop = 2K.E disc
Explanation
K.E hoop = 2K.E disc is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.