The velocity-time diagram of a harmonic oscillator is shown in adjoinning figure. The frequency of oscillation is

Answer

5

Explanation

Using `f=(1)/(2pi)sqrt((K)/(m))`
`K=(2pif)^(2)m`
Since `K_(eq)=K_(A)+K_(B)`, we get `f^(2)=f_(A)^(2)+f_(B)^(2)` for same mass
`therefore f=sqrt(3^(2)+4^(2))=5Hz`