Engineering
Physics
Newtons Second Law of Motion
Moment of Inertia
Angular Momentum and Conservation of Angular Momentum
Question

A uniform disk, a thin hoop (ring), and a uniform sphere, all with the same mass and same outer radius, are each free to rotate about a fixed axis through its center. Assume the hoop is connected to the rotation axis by light spokes. With the objects starting from rest, identical forces are simultaneously applied to the rims, as shown. Rank the objects according to their angular momentum after a given time t, least to greatest.

disk, hoop, sphere

hoop, sphere, disk

hoop, disk, sphere

all tie

JEE Advance
College PredictorLive

Know your College Admission Chances Based on your Rank/Percentile, Category and Home State.

Get your JEE Main Personalised Report with Top Predicted Colleges in JoSA

Solution
Verified BY
Verified by Zigyan

ΔL=JR=Ldt=Lt
Same for all