I need the answer as soon as possible

Example 8.2. The following data gives the velocity of a particle for 20 seconds at an interval of 5 seconds. Find the initial acceleration using the entire data : Time t (sec): 0 5 10 15 20 q71 Velocity v(m/sec) : 0 3 14 69 228 Example 8.2. The following data gives the velocity of a particle for 20 seconds at an interval of 5 seconds. Find the initial acceleration using the entire data : Time t (sec): 0 5 10 15 20 q71 Velocity v(m/sec) : 0 3 14 69 228