Four separate forces act on a disk that can rotate about its center

PHYSICS · Subjective · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion

Problem

Four separate forces act on a disk that can rotate about its center. For each force, the magnitude

F

, the distance

r

from the center, and the angle

\theta

between the force and the radius are given: A.

F=10\,\text{N},\; r=0.10\,\text{m},\; \theta=90^{\rm o}

F=8\,\text{N},\; r=0.15\,\text{m},\; \theta=60^{\rm o}

F=12\,\text{N},\; r=0.12\,\text{m},\; \theta=30^{\rm o}

F=5\,\text{N},\; r=0.25\,\text{m},\; \theta=90^{\rm o}

Determine which force produces the greatest magnitude torque about the center. Answer with the letter A, B, C, or D.