Could you please show me the answer to the question below that I posted on how to solve this question with a clear and specific process? Thanks!

3. The Three Stooges, Curly, Larry, and Moe, are having a motorcycle race. Below is the velocity-time graph of their motion. 50 - vc (m/s) 40 - VL (m/s) 30 - VM (m/s ) V ( m/s ) 20 10 0 10 20 30 t (5) a) What is the instantaneous acceleration of each Stooge at t = 4.0 s? b) How far has each Stooge cycled at t = 4.0 s? c) If the race takes place on a 600-m track, who wins