Shm (1 Viewer)

[luvotomy]

A particle, whose displacement is x, moves in simple harmonic motion. find x as a function of t if acceleration= -4x and if x=3 and velocity = -6 root 3 when t=0.

i'm trying to use: x= a sin(nt+alpha)?

 

[ssglain]

Use given conditions in x = a*sin(nt + alpha) and v = an*cos(nt + alpha) simultaneously.

 

[conics2008]

use both the displacemnt and the velocity dx/dt

sub the condition then when you have those two equation you can divide them both to get tan something = soemthing hence you ocan find your alpha.