An open lift is moving upward with velocity $10 m/s$. It has an upward acceleration of $2 m/s^2$ . A ball is projected upward with velocity $20 m/s$ relative to ground. Find the time when ball meets the lift

Question

 

\[(a)\;\frac{5}{3}\; seconds \quad (b)\;\frac{5}{2} \;seconds \quad (c)\;\frac{1}{3}\;seconds \quad(d)\;\frac{2}{3} \;seconds \]