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Physics

Mechanics

Easy

Question

A disc of mass m, and radius R moves in the X-Y planes as shown in figure. The angular momentum of the disc about the origin O at the instant shown is

$- \frac{5}{2} m R^{2} ω \hat{k}$
$\frac{7}{3} m R^{2} ω \hat{k}$
$- \frac{9}{2} m R^{2} ω \hat{k}$
$\frac{5}{2} m R^{2} ω \hat{k}$

The correct answer is: $negative 5 over 2 m R squared omega k with not stretchy hat on top$

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