Shm (1 Viewer)

[twistedrebel]

THe period of a particle moving in SHM is 6s and its amplitude is 8cm. Calculate its velocity and acceleration when the displacement is 5cm from the centre of the motion.

 

[fullonoob]

centre of motion meaning origin?
a = 8
n = pi /3
x = 8sin (pi/3) t
v = 8pi / 3 cos(pi/ 3)t
x: = -8pi^2 / 9 (sin (pi/3) t )
sub in when x = 5 to find t
then sub into v and x: