Question

The displacement of a particle is given as x = 20 Cos (200 - ∅). Calculate the maximum acceleration of the particle

Answer 1

$x=20\cos(200t-\phi)$

$a=d^2x/dt^2=-20\cdot200^2\cdot\cos(200t-\phi)$

$a_{max}=-20\cdot200^2=-8\cdot10^5\ (m/s^2)$ . Answer