Plz i need help asap

A900 kg roller coaster car is travelling westward on the track and begins to slow down from 18m/s to 2m/s. how long does it take the roller coaster car to decelerate if the force acting on the car to slow it is 7024n? how far does the roller coaster travel during this time?

Ways that industry and agriculture use physical properties to separate substances

In which type of system is power held solely by the central government and not shared with regional governments? group of answer choices federal unitary confederate oligarchic