- #1

zilex191

- 5

- 0

For the displacement as a function of time:

x(t)=x*cos(w*t)

For the velocity as a function of time(Deriving the above):

v(t)=x*w*sin(w*t)

For the acceleration as a function of time(Deriving the above):

a(t)=-x*w^2*cos(w*t)

But when i loot at other sources it shows different equations (such as instead of cos its sin).

For the displacement as a function of time:

x(t)=x*sin(w*t)

For the velocity as a function of time(Deriving the above):

v(t)=x*w*cos(w*t)

For the acceleration as a function of time(Deriving the above):

a(t)=-x*w^2*sin(w*t)

My question is what formula do i use ?