A particle is performing SHM along x - axis and equation for its motion is `x = a cos (pit)`
Let the time t be expressed as `(t)/(2) =n+m`
Where n = 0,1,2,3,4.... and m is a positive fraction.
Calculate the distance travelled by the particle during the interval from t=0 to t=t if
(a) `m gt 0.5` (b) `m gt 0.5`

Answer

`(a) s= 4an + a(1-cos pi t)`
`(b) s=4 an +a(3+cos pi t)`