According to Newton's second law,the angular acceleration experienced by an object is directly proportional to:
A)its moment of inertia.
B)the net applied torque.
C)the object's size.
D)choices a and b above are both valid.

Question

Quizplus · Accepted Answer

Newton's second law for rotation states that the net torque acting on an object is directly proportional to its angular acceleration. Therefore, the angular acceleration experienced by an object is directly proportional to the net applied torque. Option A is partially correct since the moment of inertia also affects the angular acceleration, but the proportionality is inverse, meaning that as the moment of inertia increases, the angular acceleration decreases. Option C is not correct as an object's size does not directly affect its angular acceleration in any way. Therefore, the best choice is B, the net applied torque.

According to Newton's Second Law,the Angular Acceleration Experienced by an Object