Question

if x=AsinWt then the value of d^2x/dt^2 is ( where A and W are constant) ?​

Answer 1

Answer:

Let wt= y, the

dt/dy=1/w

x=Asiny

dx/dy =Acos y

dx/dt)(dt/dy)=Acos y

dx/dt=Aw cos wt

d^2x/dt^2= Aw.w(-sinwt)

=-Aw^2(sinwt)