A uniform thin rod of mass and length rotates about an axis through its center and…

PHYSICS · Single correct · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion

Problem

A uniform thin rod of mass

2.0\,\text{kg}

and length

0.50\,\text{m}

rotates about an axis through its center and perpendicular to its length with an angular speed of

4.0\,\text{rad}\,\text{s}^{-1}

. What is the magnitude of the rod’s angular momentum about the axis? (a)

0.33\,\text{kg}\,\text{m}^{2}\!\cdot\!\text{s}^{-1}

(b)

0.17\,\text{kg}\,\text{m}^{2}\!\cdot\!\text{s}^{-1}

(c)

0.67\,\text{kg}\,\text{m}^{2}\!\cdot\!\text{s}^{-1}

(d)

0.08\,\text{kg}\,\text{m}^{2}\!\cdot\!\text{s}^{-1}