Answer to Question #273531 in Physics for Saitama

Question

In 10 seconds, a disc accelerates uniformly from rest to a rational velocity of 20 rotations per second. Calculate the flywheel's angular acceleration in rad/s²?

Answer 1

$\omega=\omega_0+\epsilon t\to \epsilon=(\omega-\omega_0)/t=(2\pi\nu-2\pi\nu_0)/t=$

$=(2\cdot3.14\cdot20-0)/10=12.56\ (rad/s^2)$ . Answer