A truck starts from rest and attains a velocity 80m/s covering a distance of 100 m calulate
1) acceralation
2) time taken to cover the distance

cf

time taken to cover the distance is (distance/speed) = 100/80 s
                                                                                   = 1.25 s (Ans.)
Acceleration = 2 * {distance-(initial velocity*t)}/time²  
                      = 2 * {100 - 0}/1.25²  m/s²                                          [initial velocity = 0]
                      = 2 * 100/1.25²  m/s²
                     = 160  m/s² (Ans.)