With an average acceleration of -1.2 m/s squared, how long will it take a cyclist to bring a bicycle with an initial speed of 6.5 m/s to a complete stop

a) 2.0 seconds
b) 5.4 seconds
c) 0.18 seconds
d) -1.8 seconds

Aproduction line at v. j. sugumaran's machine shop has three stations. the first station can process a unit in 7 minutes. the second station has two identical machines, each of which can process a unit in 16 minutes (each unit only needs to be processed on one of the two machines). the third station can process a unit in 10 minutes. ▼ is the bottleneck station, with a bottleneck time of nothing minutes per unit (enter your response as a whole number).