34.0 km/h, speeds up at a constant rate of 3.9 m/s2. What velocity does it reach 6.8 s later?
34km/hr * 1000m/km * hr/3600 = 9.444 m/sec
v = v0 + at = 9.444 + 3.9*6.8 = 35.964 m/sec = 129 km/hr
v = v0 + at = 9.444 + 3.9*6.8 = 35.964 m/sec = 129 km/hr