Consider the following four objects: a hoop, a flat disk, a solid sphere, and a hollow sphere. each of the objects has mass m and radius r. the axis of rotation passes through the center of each object, and is perpendicular to the plane of the hoop and the plane of the flat disk. which of these objects requires the largest torque to give it the same angular acceleration?

The hoop

Explanation:

We need to define the moment of inertia of the different objects, that is,

DISK:

HOOP:

SOLID SPHERE:

HOLLOW SPHERE

If we have the same acceleration for a Torque applied, then

The greatest momement of inertia is for the hoop, therefore will require the largest torque to give the same acceleration

there was no answer choices but i think its representative

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.